The wife of former Kenya Broadcasting Corporation journalist Milton Nyakundi could have been attacked before being pushed into River Nanyuki, where she drowned, a postmortem report has shown.
Mr Nyakundi says the report shows that his wife Becky Gitu suffered head injuries, indicating she may have been attacked before being thrown into the river.
Initial reports had indicated that she had slipped and fallen into the river.
Ms Gitu's body was found in River Nanyuki, Laikipia County, on October 29, shortly after she left the Nanyuki Police Station canteen, where she had been having drinks in the company of two other women.
The two friends have since been questioned by police.
Laikipia East police boss Mutoro Kizito said investigations into the incident were ongoing.
In an emotional tribute, Mr Nyakundi described his wife as a caring, loving and dedicated mother.
“I don't know what to say," he wrote. "I don't know what will take away this pain my love, I hope you will one day come back to see us, come and make the sweet tea and special vegetables you prepared for me."