In a statement, the spokesman for the command, Mr Ebere Amaraizu, said the man, Sylvester Ezema, was ambushed at Akpa Edem in Nsukka on Aug. 3, doused with petrol and set ablaze.
He said although the police had a suspect in its custody, further information from members of the public would help the police in its investigation.
Amaraizu said the victim was rushed to a hospital in Nsukka by sympathisers for medical attention but he later died.
He said the corpse had been deposited at Bishop Shanaham Specialist Hospital Mortuary in Nsukka. (NAN)