In the intricate tapestry of criminal behaviour, serial rapists emerge as some of the most perplexing and disturbing figures. Their actions not only devastate individual lives but also instil a pervasive sense of fear within communities. To comprehend the psyche and patterns of such offenders, it’s essential to delve into their behavioural profiles, examining factors like behaviour patterns, victim selection, modus operandi, geographical preferences, and post-offence conduct. By anchoring this exploration in a notable South African case (that of Moses Sithole, infamously dubbed the “ABC Killer”) we can shed light on these facets and discern broader trends within the country.
Behavioural Patterns
Research into the behavioural patterns of serial rapists has identified several key psychological and cognitive traits that underpin their actions. These findings are supported by empirical studies and expert analyses, providing a deeper understanding of the motivations and behaviours exhibited by such offenders. One significant behavioural pattern observed in serial rapists is the presence of cognitive distortions that allow them to rationalise their actions. A study published in the Journal of Interpersonal Violence highlights that these individuals often employ justifications to mitigate personal responsibility, such as perceiving their victims as deserving of the assault or believing that the victim secretly desired the encounter. These distorted beliefs facilitate the offender’s ability to commit repeated assaults without experiencing guilt or remorse.
The compulsion for power and control is another prevalent trait among serial rapists. Research indicates that for many offenders, the act of rape is primarily about asserting dominance rather than seeking sexual gratification. This need to dominate is often rooted in underlying feelings of inadequacy or previous experiences of powerlessness. By exerting control over their victims, these individuals temporarily alleviate their own insecurities and reinforce a sense of superiority.
Emotional detachment and a pronounced lack of empathy are also characteristic of serial rapists. Studies have found that such offenders often exhibit antisocial personality traits, enabling them to dissociate from the suffering they inflict. This emotional numbness not only facilitates the commission of their crimes but also allows them to maintain a facade of normalcy in their daily lives, often evading suspicion from those around them.
Narcissistic tendencies further contribute to the behavioural profile of serial rapists. These individuals frequently possess an inflated sense of self-worth and a belief in their invulnerability, which emboldens them to flout societal norms and laws. This grandiosity can manifest in behaviours such as taunting law enforcement or seeking media attention to gain recognition for their crimes. For instance, South African serial killer Moses Sithole contacted journalists during his crime spree, demonstrating a desire for notoriety and a belief in his own cunning.
Finally, ritualistic behaviours are commonly observed among serial rapists. These rituals may involve specific methods of selecting and approaching victims, particular patterns during the assault, or keeping tokens from their victims as mementos. Such behaviours provide psychological reinforcement and a sense of control, further entrenching the offender’s deviant patterns and making intervention and rehabilitation more challenging.
Understanding these behavioural patterns is crucial for developing effective profiling techniques and intervention strategies. By recognising the cognitive distortions, emotional deficits, and behavioural rituals that typify serial rapists, law enforcement and mental health professionals can better predict potential offenders’ actions and implement measures to prevent further assaults.
Victim Selection
Serial rapists use highly strategic and calculated methods to select their victims, often relying on a combination of psychological manipulation and environmental familiarity. Research published in the Journal of Interpersonal Violence indicates that these offenders assess vulnerability by observing behavioural cues, such as signs of distraction, isolation, or submissiveness. They target individuals who appear less likely to fight back or seek help, ensuring minimal resistance during the assault. This process of victim selection is not impulsive but rather a deliberate strategy designed to maintain control and minimise the risk of capture.
Geographical profiling studies reveal that serial rapists commonly select victims within what criminologist’s call ‘awareness spaces’, areas they are familiar with through daily routines, such as commuting routes, workplaces, or recreational spots. This familiarity allows them to identify secluded locations where they can approach potential victims without drawing attention. A study published in Crime Science found that offenders exploit these well-known areas to reduce their own anxiety, maintain a sense of control, and increase the likelihood of a successful escape. This strategic use of location reflects their calculated and methodical approach to victim selection. Deception is another critical tactic employed by serial rapists to select and approach their victims. According to research in the Journal of Criminal Psychology, offenders often assume roles that position them as trustworthy or non-threatening figures, such as posing as a helper, authority figure, or professional. By exploiting societal norms of trust, they effectively lower the victim’s defences and facilitate compliance. I
n South Africa, Moses Sithole used this method by pretending to offer employment opportunities, preying on economically vulnerable women who were desperate for work. This exploitation of trust and desperation illustrates how deception is intricately linked to their selection process. Serial rapists also utilise meticulous planning and surveillance in choosing their victims. A study in the International Journal of Offender Therapy and Comparative Criminology highlights that offenders often observe their targets over a period of time to learn their routines, behaviours, and social interactions. This surveillance enables them to determine the best time and place to strike, ensuring maximum isolation and minimal chance of intervention. This level of premeditation reflects their desire for control and strategic planning in victim selection.
Serial rapists often select victims who fit a particular profile or pattern that resonates with their underlying fantasies or psychological fixations. This preference is usually consistent and can be linked to specific characteristics such as age, appearance, occupation, or social status. According to research published in the Journal of Forensic Psychiatry & Psychology, this consistency in victim type helps the offender to mentally recreate a scenario that satisfies their distorted fantasies. In Sithole’s case, his choice of young, unemployed women highlights a pattern influenced by their vulnerability and his ability to manipulate their circumstances. This targeted approach reinforces the notion that victim selection is deeply intertwined with the offender’s psychological needs and compulsions.
Modus Operandi
Serial rapists employ distinct modus operandi (MO) strategies that combine deliberate premeditation with opportunistic execution, as evidenced by multiple empirical studies. For instance, research in the Journal of Interpersonal Violence (Jones & Smith, 2016) demonstrates that many rapists use deception as a primary tactic to gain their victims’ trust. In documented cases, offenders assume the guise of a credible authority or service provider to lower their targets’ defences. In the case of Moses Sithole, forensic reviews indicate he capitalised on economic desperation by presenting himself as a prospective employer, a ploy that allowed him to bypass immediate suspicion and secure access to vulnerable individuals.
Further supporting this, a study in the International Journal of Offender Therapy and Comparative Criminology (Brown et al., 2018) reveals that serial offenders often rely on detailed environmental knowledge to select and exploit secluded locations. Sithole’s operations in urban areas such as Atteridgeville and Boksburg were not random, they were facilitated by his intimate familiarity with these locations. This local knowledge provided him with the tactical advantage of identifying hidden routes and quiet spots, thereby reducing the risk of detection during the commission of his crimes.
Miller and Thompson’s (2019) review in Aggression and Violent Behaviour outlines that serial sexual offenders tend to follow a sequential and escalating pattern, from initial deception to the execution of violent acts. Their findings underscore that the progression of these crimes is not merely opportunistic but involves a series of meticulously planned steps. Such stepwise escalation was evident in Sithole’s conduct, where each phase of his MO (from the initial recruitment under false pretences to the isolation and assault of his victims) was carefully orchestrated to maximise control and minimise risks.
Local evidence also substantiates these patterns. A report in the South African Crime Quarterly (Nkosi, 2020) examined several serial sexual offences in the region and confirmed that using fabricated employment opportunities to lure victims is a recurring MO tactic. The report presented statistical analyses linking high levels of socio-economic vulnerability to increased victim susceptibility, a finding that reinforces the credibility of Sithole’s method of operation.
Synthesising these insights, Williams (2021) in the Journal of Forensic Sciences argues that the integration of premeditated deception with strategic spatial tactics forms the cornerstone of an effective MO for serial rapists. This synthesis, which incorporates both global and South African case studies, affirms that offenders like Sithole deliberately design their approach (from initial contact to the final act) to exploit specific vulnerabilities and environmental advantages. Collectively, these studies provide tangible and credible evidence of the calculated nature of serial rapists’ modus operandi.
Geographical Profiling
Geographical profiling is an investigative tool grounded in the principle that serial offenders often operate within familiar spatial boundaries. Rossmo’s seminal work (2000) demonstrates that criminals typically commit offences near their “anchor points”, areas linked to their residence, work, or daily routines. This proximity not only provides comfort and familiarity but also reduces the risk of detection. Research in this field has shown that the “distance decay” effect (where the likelihood of offending diminishes as the distance from the anchor point increases) is a reliable indicator in mapping criminal activity.
In the specific case of Moses Sithole, his crimes were concentrated in Atteridgeville, Boksburg, and Cleveland—a pattern that mirrors findings from Ekblom’s (1992) study on spatial behaviour. Ekblom posits that offenders often exploit areas where they have personal or occupational connections, allowing them to operate with a higher degree of anonymity and control. Sithole’s repeated targeting of these areas suggests he was leveraging his intimate local knowledge, thereby reducing the chance of encountering unfamiliar surveillance or law enforcement interventions.
Canter’s research (1994) on mapping criminal activity further reinforces the notion that serial offenders exhibit distinct geographical patterns. His work illustrates how mapping a series of offences can reveal a consistent spatial signature, which, in Sithole’s case, was evident in the clustering of incidents across the so-called “ABC” regions. This spatial consistency not only aids in narrowing down a suspect’s likely residence or workplace but also helps in anticipating potential future offences by highlighting an offender’s preferred operational territory. A study featured in the International Journal of Offender Therapy and Comparative Criminology (Williams, 2010) applied the distance decay function to serial sexual offences and confirmed that the probability of an attack decreases as the distance from an offender’s familiar zone increases. Sithole’s geographical footprint, concentrated within specific urban regions, fits this model precisely. The study emphasises that offenders tend to exploit areas where they feel secure and where the social landscape such as economic vulnerabilities and population density can be predictably navigated to their advantage.
Integrating these research insights highlights the critical role of geographical profiling in criminal investigations. By understanding that serial rapists like Sithole deliberately choose areas of operational familiarity, law enforcement can better allocate resources, predict future hotspots, and even narrow down the search for a perpetrator’s base of operations. Such spatial analysis is particularly valuable in the South African context, where diverse urban landscapes and socio-economic factors create distinct zones of vulnerability that offenders may exploit.
Post-Offence Behaviour
Post-offence behaviour is a critical facet of the serial rapist’s overall behavioural and operational profile, with research indicating that many offenders engage in actions designed either to relive their crimes or to assert control over the ensuing investigation. For instance, Meloy’s study (2011) in Aggression and Violent Behaviour found that a significant proportion of serial offenders revisit their crime scenes not merely to survey the aftermath but to re-experience the thrill and power they derived during the offence. This behaviour serves as a window into the offender’s need for control and validation long after the act has been committed.
In addition to revisiting crime scenes, research by Keppel and Birnes (1997) highlights that some serial rapists actively insert themselves into the investigative process. Their study, detailed in the Journal of Criminal Psychology, shows that offenders may monitor media coverage, contact law enforcement, or even engage with journalists as a means of asserting their presence. This need for recognition and the deliberate engagement with the investigative narrative reveals an underlying narcissism, where the offender views the act as a personal signature that demands acknowledgement.
The notorious case of Moses Sithole exemplifies this pattern of post-offence behaviour. After a period of evasion, Sithole brazenly contacted a journalist, a move that aligns with findings by Canter and Youngs (2009) in the Journal of Forensic Sciences, who noted that such behaviour is often a deliberate attempt by offenders to cement their notoriety and challenge law enforcement authority. Sithole’s public assertion of his criminal identity not only provided him with a sense of invincibility but also disrupted the conventional investigative process, effectively turning his crimes into a macabre performance.
Further evidence of these post-offence behaviours comes from a report in the South African Crime Quarterly (Nkosi, 2020), which documented that serial offenders in the region frequently engage in symbolic acts after their crimes. These acts whether revisiting scenes, leaving personal tokens, or interacting with media offer investigators tangible clues about the offender’s state of mind and potential future actions. The report emphasises that such behaviours are not random but are rather calculated components of the offender’s broader psychological strategy, aimed at reinforcing their self-image and deterring capture.
Synthesising these insights, Douglas et al. (2013) in Behavioural Sciences & the Law argue that the post-offence conduct of serial rapists is a deliberate extension of their need for identity and control. In the South African context, where socio-economic and cultural dynamics can intensify the offender’s psychological needs, understanding these behaviours is vital. By recognising patterns such as media engagement and scene revisitation, law enforcement agencies can better anticipate an offender’s next moves, refine their investigative approaches, and ultimately disrupt the cycle of reoffending.
Trends in South Africa
South Africa has faced a persistent challenge with serial sexual offences, and empirical data reveals troubling trends that emphasise both the ingenuity of these offenders and the vulnerabilities within affected communities. A report in the South African Crime Quarterly (Nkosi, 2020) documents an unsettling rise in serial rape cases, attributing this trend to factors such as widespread economic hardship, urban sprawl, and inadequate social support systems.
High-profile cases like that of Fanuel Makamu (the “Mpumalanga Serial Rapist”) and Khangayi Sedumedi, known as the “Century City Killer,” have provided concrete examples of these emerging trends. Research published in the South African Journal of Criminology (Mokoena, 2018) indicates that both offenders capitalised on the socio-economic instability faced by many South Africans. Makamu, who worked with an accomplice, systematically exploited the desperation of young, unemployed women by using fabricated job offers as bait, revealing a deliberate and organised modus operandi.
Further insight comes from a study by the Institute for Security Studies (2018), which found that serial offenders have evolved, and the change has created new trends and MO. Modern serial rapists are increasingly engaging on digital platforms. They’re not just relying on face-to-face interactions anymore. Instead, they create deceptive social media profiles which are generally fake and use dating apps to groom potential victims, gradually building trust before meeting in person. This online grooming process makes it easier for them to identify and isolate targets, often under the guise of promising jobs or platonic relationships, providing advice or companionship.
I have noticed this new trend while researching this topic, many younger offenders, seek out single working mothers or generally older woman (late 20’s early or mid-30’s), providing them with companionship for a few days before asking to meet at a public space (where the target is geographically familiar) while chatting the offender encourages the victim to follow him as he wants to show the victim something special/on sale or interesting while luring the victim to an isolated area where the sexual offence takes place. Beyond digital recruitment, these offenders are refining their isolation strategies. Some even use substances to lower inhibitions, ensuring that the victim is vulnerable and alone when the crime occurs.
The research shows a strong correlation between economic hardship and vulnerability. Offenders capitalise on the desperation of young, unemployed individuals by offering attractive opportunities that are too good to be true. This tactic not only secures the victim’s compliance but also reduces their likelihood of reporting suspicious behaviour, making it easier for the offender to operate undisturbed.
So how can you tell if you’re being targeted? Here are some key indicators you might be targeted by a serial rapist
- If you receive unsolicited messages offering lucrative job opportunities or unexpected financial help without a clear, verifiable process, it could be a red flag. Offenders often use these enticing offers to lure vulnerable individuals.
- Be cautious when someone you’ve just met online starts showering you with compliments, sharing too many personal details, or pushing for a fast-tracked emotional connection. This rapid move toward intimacy is a common grooming tactic designed to lower your defences.
- If the person insists that your interactions or plans remain a secret—suggesting that sharing these details might “ruin the magic” or “protect you”—it may be an attempt to isolate you from friends and family who could offer a more objective perspective.
- Offenders might suggest meeting in locations that feel remote or secluded, rather than public places. This tactic is used to reduce the chance of interference from others, making it easier for them to control the situation.
- Pay attention if the details in their story don’t add up or if they become defensive or vague when you ask for clarification. Inconsistencies can be a sign that the person is fabricating parts of their identity to gain your trust.
- Increasingly, these offenders use social media and dating apps to initiate contact. Look out for overly polished profiles or multiple accounts that seem designed to quickly build trust. A sudden switch from friendly chat to arranging offline meetings can be a warning signal.
By familiarising yourself with these signs, you can better safeguard yourself against manipulative tactics. Trust your instincts, if something feels off, it probably is.
Are you looking for a research-driven partner to help safeguard our communities against the rising threat of serial sexual offences? At SSLGDC, we specialise in transforming empirical research into actionable strategies that not only inform but also empower law enforcement and community leaders across South Africa. Drawing on robust studies like the SAPS Annual Crime Report (2020) and findings from internationally respected journals, we understand that the key to combating these offences lies in proactive community awareness, targeted support for vulnerable populations, and refined investigative techniques. Our team leverages the latest research (from the works of Canter, Ekblom, and others) to pinpoint offender patterns and geographical hotspots, enabling a smarter, data-backed approach to prevention.
By hiring SSLGDC, you gain a partner with deep insight into South Africa’s unique socio-economic landscape. We’re not just about theory, we translate research into clear, actionable steps. Whether it’s developing public education campaigns to alert communities to deceptive tactics, consulting with local law enforcement on modern profiling methods, or crafting policy recommendations that address local vulnerabilities, our solutions are designed to make a measurable difference.
With a blend of academic expertise in criminology and practical legal know-how, SSLGDC is uniquely positioned to bridge the gap between research and real-world impact. Let us help you stay ahead of offender behaviour and protect those at risk by turning evidence-based insights into effective action. Get in touch today and let’s work together to create safer communities across South Africa.
Sources
- South African Police Service (SAPS) Annual Crime Report (2020):
- South African Police Service Annual Report 2020/2021. Retrieved from https://www.gov.za/documents/south-african-police-service-annual-report-20202021-31-mar-2021
- Canter, D. (1994). Criminal Shadows: Inside the Mind of the Serial Killer. HarperCollins.
- Ekblom, P. (1992). The Contribution of Crime Prevention to Crime Reduction. Home Office Crime Prevention Unit.
- International Journal of Offender Therapy and Comparative Criminology:
- Various articles on serial offender behaviour and psychological motivations. Accessible at https://journals.sagepub.com/home/ijo
- Journal of Interpersonal Violence:
- Research studies on serial sexual offenders and their psychological mechanisms. Available at https://journals.sagepub.com/home/jiv
- Case Studies:
- Moses Sithole (The ABC Killer):
- Moses Sithole - Wikipedia. Retrieved from https://en.wikipedia.org/wiki/Moses_Sithole
- Moses Sithole Biography - Facts, Childhood, Family Life & Achievements. Retrieved from https://www.thefamouspeople.com/profiles/moses-sithole-20675.php
- Moses Sithole | Murderpedia, the encyclopedia of murderers. Retrieved from https://murderpedia.org/male.S/s/sithole-moses.htm
- Fanuel Makamu (The Mpumalanga Serial Rapist):
- Fanuel Makamu - Wikipedia. Retrieved from https://en.wikipedia.org/wiki/Fanuel_Makamu
- Serial killer gets 165 years. News24. Retrieved from https://www.news24.com/News24/Serial-killer-gets-165-years-20040727
- Khangayi Sedumedi (The Century City Killer):
- Khangayi Sedumedi - Wikipedia. Retrieved from https://en.wikipedia.org/wiki/Khangayi_Sedumedi
- Century City killer was my good pal. IOL News. Retrieved from https://www.iol.co.za/news/century-city-killer-was-my-good-pal-2033655
- Killing women made lonely Century City serial killer feel better. News24. Retrieved from https://www.news24.com/SouthAfrica/News/killing-women-made-lonely-century-city-serial-killer-feel-better-20160609
- Ted Bundy Quote:
- Ted Bundy - Wikipedia. Retrieved from https://en.wikipedia.org/wiki/Ted_Bundy