HOLLY HILL, Fla. -

A man has been charged with second-degree murder after Holly Hill police say he shot and killed his roommate in an argument over how to prepare pork chops.

Police said Thomas Mathew Hahn, 55, of May Avenue, shot his 35-year-old roommate after his roommate arrived home at 10 p.m. Tuesday and an argument ensued, according to preliminary investigation reports.

Hahn then went to his room, grabbed a .22 caliber Ruger rifle and shot the victim twice in the head.

Hahn told officers that his roommate had come home drunk and the two began arguing about dinner. He says they've argued in the past, with the arguments often becoming physical.

The name of the victim is being held pending notification of next-of-kin. Hahn told police it was in self-defense, but the two other roommates who witnessed the shooting said there was no struggle or direct threat to Hahn.

“This appears to be a senseless act of violence stemming from a minor domestic dispute between roommates," said Holly Hill Police Chief Mark Barker in a release. "There is no clear answer at this hour as to why Hahn acted with such extreme violence.”

Hahn is being held without bond at the Volusia County Branch Jail.  Additional charges are pending the results of the investigation.