Christopher Sullivan, a California soldier recovering from injuries suffered during a suicide attack in Afghanistan, has been shot, while at his homecoming party, late on Friday.

According to an Associated Press report, the 22-year-old was trying to break up a fight between his brother and another man, at his San Bernardino residence.

My son didn't deserve this. He served his country, his mother, Suzanne Sullivan, told the San Bernardino Sun. Other family members told the newspaper that Sullivan was paralyzed after the gunshots and is in critical condition. Sullivan also suffered a fractured collar bone and brain damage, after his Afghanistan experiences.

He was on leave from the Army for holidays when he attended the party.

Police said Sullivan's brother and the other man began an argument over football and when Sullivan tried to intervene, the man pulled a gun from his waistband and fired at least thrice. The gunman then ran away before the police arrived; he has not yet been identified or located.

The police, speaking to KLTA-TV Channel 5, said they were unsure of the extent of his paralysis.

We're not sure if he's going to be paraplegic or quadriplegic, Sgt. Gary Robertson said.