ST. PETERSBURG, Fla. (AP) -- A southwest Florida man has been charged with second-degree murder after authorities say he fatally stabbed his roommate for stealing his food.

St. Petersburg Police said 36-year-old Corey Walker was angry on Tuesday morning, telling his roommates that someone was stealing food from his room. He blamed Anthony Smith and grabbed a butcher knife from the kitchen and allegedly stabbed Smith once in the chest.

Another roommate flagged down a passer-by and asked them to call police.

The 56-year-old Smith died at the hospital.

The two men live at a transitional house run by a local church.

Walker was arrested at the home without incident. The knife was recovered in the kitchen sink.