Mr Ali said this was the second family member to have been killed by a hippo.
Cases of human-wildlife conflict have recently increased in the region.
A 36-year-old fisherman was on Saturday night attacked and killed by a hippo in Usoma Beach, Kisumu County.
Mr Abubakar Iddi was on a fishing expedition according to his brother Musa Ali.
The family and relatives got worried and launched a search when Mr Iddi failed to return home by 9 pm.
“We found his boat in Usoma beach,” said Mr Ali.
Mr Iddi’s body, which had chest injuries, was found near the boat which had his fishing gear.