Umoja man found dead in his house weeks after suspected assault

Crime scene

Police in Nairobi are investigating a suspected murder after a man who had earlier been assaulted was found dead at his home in Umoja II estate.

The victim, identified as Simon Ng’ang’a Mwangi, was discovered unresponsive after he failed to wake up, with blood oozing from his nose, prompting alarm among family members.

Officers who visited the scene noted an old scar on the left side of his head, raising suspicions over a possible link to a previous assault.

According to relatives, Mwangi had been attacked on February 25, 2026, at Mukuru Kayaba stage in Industrial Area, where he was allegedly struck on the head with a weighing machine by a person known to him.

The incident had been reported at South B Police Station. He was initially treated at Lengo Medical Centre in Mukuru Kayaba before a P3 form was filled out at a Nairobi facility documenting the injuries.

His body has since been moved to Mama Lucy Kibaki Hospital mortuary, where it awaits a postmortem examination to establish the cause of death.

Police say investigations are ongoing to determine the circumstances surrounding the death and take action against the suspect.

Elsewhere in Nyamira County, two men were killed by a mob in Riotori village over claims of livestock theft.

Police said one of the victims had been accused of stealing and selling a goat, while the second was a motorcycle rider who was ferrying him. The rider died on the spot, while the suspected thief succumbed to injuries in the hospital.

The bodies were moved to a mortuary pending identification and postmortem.

Police have condemned mob justice, urging members of the public to hand over suspects to authorities, noting dozens of such cases have been reported in recent months despite ongoing campaigns against the practice.

In Kitui County, detectives are also probing the killing of an 18-year-old man who was shot dead by gunmen in Ngomeni.

The victim, Osman Hassan Hassan Ali, was found in a thicket after the attack on the evening of April 6.

Police said he was attacked by men wearing jungle uniforms and riding three motorcycles at Makenja farm in Kyuso Sub-County. The motive remains unclear.

His body was moved to a mortuary pending an autopsy as investigations continue.

Authorities say the area has recently experienced a surge in cattle rustling-related attacks, with about seven people killed in the past month.

Police have deployed personnel to pursue the attackers and restore calm, amid ongoing tensions between neighbouring communities over pasture.