Kansas city police say the death of a gay bar owner in a house explosion is being investigated as a homicide.

The Jackson County Medical Examiner ruled the death of Melvin “Lee” Mecker a homicide on July 8. No suspects are in custody. Mecker died when his house exploded and burned down on April 10.

Police have not said how Mecker was killed, or whether he died before or during the blaze. Sgt. Jacob Becchina, a police spokesman, declined to comment further on the case.

Kansas City Fire Department Deputy Chief Jimmy Walker said in April that power and gas had been shut off to the house, but there were generators and possibly gasoline present on the property.

Mecker’s business, Buddies bar, closed after his death. He had been manager and owner of the bar for about two decades.