The second post-mortem conducted on the body of 23-year-old interior designer Jeff Mwathi established he died due to severe head and limb injuries.
The pathologist indicated that it will however take longer to know whether he was sexually molested or not.
Chief Government Pathologist Johansen Oduor established that he had severe head injuries.
He also had fractures on the upper and lower limbs as well as on his neck.
"We have taken more samples to carry out a toxicology test and also to establish if he was sexually molested before he met his death," said Oduor.
He added it will take at least three months.
"l have established that he had severe head injuries that almost raptured the skull,” said the pathologist.
He added they can’t determine what specifically caused the death for now.
Detectives from the homicide department were part of the team that led the exhumation and fresh autopsy of the body which had been buried at his parents' home in Likia, Njoro Sub-County, in Nakuru.
It was exhumed on Friday morning.
The fresh post-mortem, coming hours after the body was exhumed, was also witnessed by family members.