A man armed with a semiautomatic rifle on Tuesday fatally shot his estranged girlfriend while she was on her boat at a marina and critically wounded a crew member before killing himself.
Another man survived by jumping overboard and swimming away.
Sheriff's deputies responding to several calls of multiple gunshots at Fisherman's Point commercial marina area found the bodies of Marlem Riesgo, 34, and Jose A. Mollinea, 35.
Renee Torna, 29, who was also on the boat with Ms. Riesgo and Juan Hernandez, was in critical condition at Fisherman's Hospital in Marathon.
The fishers were ready to cast off from the dock when the gunman arrived shortly after dawn.
"The ex-boyfriend, who had been arrested before for domestic battery against the woman, pulls up in a rental car," said Monroe County sheriff's spokesman Greg Artman. "He had the gun with him when he got out of the car."
Mollinea shot Ms. Riesgo and then shot and wounded Torna, the spokesman said. Then Mollinea shot himself to death with an AK-47 semiautomatic assault rifle. Hernandez jumped overboard.
Mollinea had been arrested March 9 on a domestic violence charge involving Ms. Riesgo. He was released from jail Thursday and was awaiting trial on charges of assault and throwing a missile.