- 32,598 viewsDuration: 3:30Homicide detectives have arrested two key suspects in the ongoing investigation into the murder of renowned mental health researcher Dr. Victoria Nthunya Mutiso. The suspects, Rose Mbithe Mulwa and her son, Chris Mulwa, were arrested on Wednesday night at their home in Karen. Detectives recovered more than 40 mobile phones, a Mitsubishi Pajero, and several electronic devices for forensic examination. Investigators believe the killing may be linked to a multi-billion-shilling family property dispute and a marriage formalized just days before the murder. Franklin Wallah reports on the latest developments in the investigation.