[KHTS] – A Santa Clarita Valley man helped save the swimmer who was bitten by a shark off the coast of Manhattan Beach on Saturday.

Around 9:30 a.m., a 7-foot juvenile shark bit the Steven Robles, 40, near a buoy a couple hundred yards away from the pier, officials said.

Casey Fenwick, 31, of Stevenson Ranch, was surfing near the Manhattan Pier when he heard Robles screaming.

“We tried to flag down a lifeguard and I was already halfway out there. A paddleboarder showed up right before I did,” said Fenwick. “Two swimmers stopped and kept the man afloat. When I got out there, I just saw a lot of blood. I didn’t actually see the bite till I got to shore.”

The two swimmers, the paddleboarder and Fenwick put the injured Robles onto the paddle board and pushed him to shore, he said.

“As soon as I got there, I saw the shark was 5 feet away from us,” said Fenwick. “Looking back on that, it was kind of like, I didn’t even really put the two together, I was just concerned about getting the guy help and getting out of the water. It’s now kind of hitting me that this could have been a bad deal.”

The shark tried to bite through the fishing line that he was hooked on and ended up biting the swimmer under his arm, according to NBC News reports.

“It wasn’t a full-size bite,” said Fire Capt. Tracy Lizotte. “It didn’t seem to be a large bite.”

Some witnesses believe a group of fisherman angered the shark when they caught it on a hook while fishing off of the pier.

“A fisherman who was with the group that hooked the shark said they were looking to catch and release bat rays and tiger sharks,” according to NBC News. “He said they kept the shark on the fishing line because they did not want to release it near people in the water.”

Officials closed the beach for hours and are not planning to reopen it for fishing until Tuesday.

Fenwick has been surfing since he was about 10 years old and this is not the first time he has saved a life.

“My father was diagnosed with leukemia and they went thru the whole process of trying to find a donor,” said Fenwick. “There were two guys in Greece that were close to a match but it didn’t work out with them.”

About 10 years ago, Fenwick, who was a match to his father, went through the process of donating bone marrow.

“They took the marrow from my hips and they took a total of 1600cc from my hips, and they could only take a couple of cubic centimeters at a time,” said Fenwick. “There were a hundred holes in my hips. They put the bone marrow in my dad’s i.v. and he was pretty much back to new.”

Fenwick would be unconscious for about four hours during the process.

“it’s not a fun or comfortable process. It was the worst muscle cramps in my entire life,” Fenwick said. “Something like that, I didn’t think about anything else but trying to help my dad.”