Three men invaded a small store, a pulpería, in Estrada de Matina about 8 p.m. Saturday and shot dead the owner.
The crooks got away with 8,000 colons, about $16.
The man, identified by the last name of Mora, was alone in the store when the bandits arrived. The trio would have gotten more money, but the Judicial Investigating Organization said they could not open the cash register.
Mora, 57, was a fixture in the area and lived in a small apartment behind his store, said agents.