MCA Thomas Minito, who had been missing for five days, was found dead in Ol Donyo Sabuk, Machakos on Friday morning.
The Churo-Amaya ward representative had been termed a bandit leader and linked to attacks in the volatile Kerio Valley. He went missing on Monday.
The bodies of human rights lawyer Willie Kimani, his client Josephat Mwenda and taxi driver Joseph Murirui were found in the area last year. Investigations into these killings are yet to be completed.
Read: Baringo MCA linked to Laikipia bandit attacks goes missing
Also see: Willie Kimani murder: Diver narrates horror of finding...