Philip Onyancha: Inside Kenya's Most Prolific Serial Killer Case

Philip Ondari Onyancha, a Kenyan self-confessed serial killer and rapist, became one of Africa's most shocking criminal cases when he was arrested in 2009–2010. At the time of his detention, he was regarded as Kenya's most prolific serial killer, having confessed to murdering nearly 20 people—primarily women and children he described as "weak and vulnerable."

Onyancha's arrest came through an unexpected lead: Safaricom call data records linked him to the kidnapping of a 9-year-old boy held for ransom. When police examined the handwritten ransom note, they matched it to Onyancha's writing. What followed was one of Kenya's most disturbing criminal investigations.

Following his arrest, Onyancha led police to multiple burial sites across Kenya. Within the first few days, authorities recovered four bodies of women who had been reported missing in previous years. Two additional bodies were discovered in the Karen suburb of Nairobi. In one of the most chilling discoveries, police found the bones of a young woman in the attic of a home where Onyancha had worked as a security guard—a victim he claimed to have selected at random from the street.

**The Confessions and Claims**

Onyancha confessed to killing at least 18 women in 2009, with some sources citing his claims of nearly 20 victims. He detailed a method that revealed a calculated predator: he would lure victims—primarily women—using what he called a "magic touch" or handshake, then take them to private locations where he murdered them through strangulation or stabbing.

More disturbing still were his stated motivations. Onyancha claimed he drank his victims' blood to fuel supernatural powers. He told interrogators that the devil had instructed him to kill 100 women to gain fortune, and he claimed a teacher had recruited him into a cult during his school years with orders to kill 100 people and consume their blood.

Among his documented victims were eight sex workers in Thika, along with other women and children throughout Kenya. The brutality extended to desecrating remains: in one case, a body exhumed from a shallow grave in his mud house in Thika was found with missing body parts.

**Legal Proceedings**

In 2010, Onyancha was charged with three murder cases alongside co-accused Douglas Obiero Makori and Tobias Anyabuhanga Aradi. The prosecution alleged he had killed 19 people in separate incidents in 2009.

The legal process, however, proved complex. Onyancha initially accused Elizabeth Wambui of being an accomplice, but he later retracted these claims. Kibera magistrate Fridah Nyakundi addressed Wambui directly in her ruling, acknowledging the false accusations. Onyancha was convicted and sentenced for attempted rape and assault by the Kibera magistrate.

A critical development came in April 2018 when Justice James Wakiaga of the High Court declared a mistrial in the murder case, ruling that proceedings had been conducted on improper grounds. The court ordered a fresh hearing, and the case was referred to Justice Jessie Lesit, head of the criminal division, for retrial.

**Current Status**

Onyancha has remained incarcerated at Kamiti Maximum Prison. In a 2017 prison interview, he claimed to have become "reformed" and stated he was preaching to other inmates. Whether genuine rehabilitation or continued manipulation, his claims remain contentious given the severity of his confessions.

The case of Philip Ondari Onyancha remains one of East Africa's most disturbing criminal histories, highlighting both the brutality of serial predation and the complexities of Kenya's justice system in prosecuting such heinous crimes.

**Sources**

- https://fruitloopspod.com/2021/04/29/e119-philip-onyancha/ - https://unresolved.me/philip-onyancha - https://www.standardmedia.co.ke/m/article/2001227416/the-devil-told-me-to-kill-100-women-reformed-serial-killer-onyancha - https://theafricancriminologyjournal.wordpress.com/2021/07/15/kenyan-serial-killer-confesses-to-13-murders/ - https://www.youtube.com/watch?v=eAQ1Du52ubE