From this story on kswt.com:
A Mexican man fishing in El Golfo this weekend got the shock of a lifetime, when he caught a hammerhead shark. It happened on Sunday, when a man who was alone in a small boat cast a net to try and cat a few fish, and instead caught a huge shark weighing more than 440 lbs. The man managed to kill the shark and haul it to shore, where it became the biggest draw on the beach for a few hours as people clamored to get a close look at the creature. The fisherman says he has since sold the shark to an area fish processor for about $250.00.