Sources said the killer was masked and went inside the vicarage at about 1am on Monday before moving to where the deceased slept and shot him.
It was learnt that the gunman did not take anything from the deceased after killing him.
The State Police Public Relations Officer(PPRO) Femi Joseph, confirmed the incident, saying the command had commenced investigation into the matter.
Joseph suspected that it was an assassination case.
He however alleged that the family members of the deceased were not cooperating with the police on its investigation.
According to him, the command had invited them but they had failed to show up,urging them and to cooperate with the police in unfolding those behind the dastardly act.