- Mr Rutto said two attackers had laid an ambush where Mr Hantati had gone to inspect a water pump.
- The incident comes barely 10 days after nine houses were torched by arsonists' in Tanna.
A 70-year-old man in Isiolo County was killed in what is viewed as another revenge attack by assailants suspected to be from Garissa County.
Galgalo Hantati was pronounced dead at Garba Tulla Sub County Hospital.
He was shot at Taiboto in Garba Tulla.
Garba Tulla Deputy County Commissioner Kipchumba Rutto said two attackers had laid an ambush where Mr Hantati had gone to inspect a water pump at Taiboto bore hole.
He suspected that the 7am incident was a retaliatory attack by the bandits who were flushed out of the county for causing insecurity.
Police and reservists have been deployed to track down the suspects who were armed with AK-47.