TAMPA — A shooting Monday night outside a Tampa gas station netted no arrests, but police say they know who fired the fatal gun shots in what could be a case of self-defense.

The shooting happened about 10:40 p.m. outside the Hope Food Store at 4002 N 22nd St. Anton Kerel Fisher, 35, got into an argument with another man and pulled a gun, police said. A third man, Anthony Martin, stood nearby and saw the argument. When Fisher turned and pointed the gun at him, Martin drew his own gun and shot Fisher, police said.

Fisher died on the way to the hospital. Martin, 23, has a concealed weapons permit, police said. He stayed at the gas station after the shooting and cooperated with the police investigation.

Police referred the case to the Hillsborough state attorney's office to determine if charges would be filed.

Martin has no significant criminal history in Hillsborough County. Fisher had a record of several arrests in the last 15 years on numerous charges, including theft of a motor vehicle and a federal firearms violation.