Man arrested after alleged threat to commit mass shooting at synagogue

A man was arrested after allegedly threatening to commit a mass shooting at a synagogue, police in California said Friday.

Ross Farca, 23, was charged with making criminal threats, possession of an illegal assault rifle and manufacturing an assault rifle, the Concord, Calif. Police Department said in a statement.

Officers said they were alerted by the FBI to comments in an online chatroom and that they traced them to Farca. They said the comments included threats against Jewish people, threats to shoot law enforcement and claims to possess an assault rifle along with the synagogue threat.

On Monday, June 10th, an arrest warrant was issued for Farca as well as a search warrant for his house. The warrants were served and Farca was arrested at his home without incident. Inside his home, an illegal AR-15 semi-automatic rifle was found which had been constructed from the same legally purchased frame. Several high capacity magazines were also found but no rifle ammunition was located. Additionally, detectives located Nazi literature, camouflage clothing and a sword.

Farca was being held in the Contra Costa County Jail, according to the statement. Detectives also obtained an order preventing Farca from buying firearms, according to the statement.

Farca’s arrest follows a separate shooting at a California synagogue earlier this year that killed one person. Eleven people were killed at a synagogue shooting in Pittsburgh last year.