COTO DE CAZA, Calif. (KTLA) -- Hal and Evita Block were devastated Wednesday night when they discovered their 23-year-old son Gregory was beaten in an alleged hate crime at an Orange County park.

"As a father, you try to protect your children, but I couldn't protect him from this," Hal Block told KTLA.

"It just kills me," he said.

"These kids were out to hurt this guy, not any body else," said his mother Evita, whose ancestors endured the Holocaust. "They succeeded."

It happened Wednesday at 8 a.m. in a park at Vista del Verde and Via Pajaro.

Gregory Block was sitting on a park bench when approached by three men, according to Orange County Sheriff's Department spokesman Jim Amormino.

One asked him for money, and when the victim didn't give them any, they began to beat him while making anti-Semitic remarks, Amormino said.

The men took his wallet and his cell phone before writing expletives, and Gregory's name, on the cement near the scene of the attack, as well as a swastika and "White Power," he said.

Matthew Branstetter, 19, and Nolan Wickham, 19, were later arrested and booked on suspicion of robbery and a hate crime.

A third suspect is still at large.

Block suffered a broken jaw, nose and eye socket as well as cracked ribs and a concussion.

"For my son to be beat up like this simply because hes a Jew, I can't grasp that. It just makes no sense to me," Hal said.

It is unclear how the attackers knew Block was Jewish.

Anyone with information is asked to contact the Sheriff's Department at 877-TIP-OCSD or 1-877-847-6273.