 Police have identified the main suspect as 33-year-old Collins Jumaissa Kalisia, who was confessed to killing 42 women since 2022. He was arrested after police recovered 10 bodies with signs of mutilation and torture from a quarry dump site in a Nairobi slum area. Kalisia was found with a mobile phone belonging to one of the victims. Autopsies of the recovered bodies are being conducted as recovery efforts of more corpses continues.