Published: Sep 16, 2010 4:13 PM EDT
Updated: Sep 16, 2010 1:13 PM EDT

PORT ORANGE, Fla. (AP) - Police believe the owner of a Port Orange restaurant purposefully set the building on fire but didn't mean to die in the blaze.

The Biscuits 'N' Gravy restaurant was destroyed in July, and a dead body found inside was later identified as the restaurant's owner, 62-year-old Marinos Sigalas. Court records show that Sigalas and his wife were divorcing. The wife told investigators that her husband was supposed to hand over the keys to the restaurant to her the morning after the fire.

A joint police and Fire Marshal's Office investigation found Sigalas died from accidental smoke inhalation. No other deaths or injuries were reported.

Police say Sigalas had threatened to kill his wife. Detectives found a shotgun and two cans of gasoline in his car.