A San Jose man has been identified as the surfer who was found unconscious in the waters of Ocean Beach Wednesday afternoon.
According the medical examiner's office Jonathan Luhn, 44, died after a good samaritan noticed he was in trouble and pulled him to shore.
That rescuer also performed CPR and called 911, but it wasn't enough. Luhn died later at the University of California at San Francisco Medical Center. It was not clear how long he had been floating in the water before he was discovered.
Bay City News says an autopsy was scheduled for Thursday, but quotes the medical examiner as saying it could be weeks before we know if he suffered a medical problem or suffered an injury while surfing.
Friends said Luhn was as an excellent surfer as well as a surf instructor. He was co-owner of a Santa Cruz based business called "Aloha Wave Rider" with Chris Ewing.
Ewing said they opened their school in 2003 to teach young people about ocean safety and the joys of surfing, adding the Luhn had been involved in a couple life saving incidents over the years.
Luhn was also a regular at Four Mile Beach north of Santa Cruz.