A Toledo-area man was indicted on federal charges Tuesday, following his arrest in December for what federal authorities said was a plan to carry out a mass shooting at a synagogue in the name of the Islamic State.

Damon Joseph, 21, of Holland is charged with attempting to provide material support to ISIS, attempting to commit a hate crime and possessing firearms in furtherance of a crime a violence.

The FBI arrested him Dec. 7 after he grabbed a duffel bag with two disabled semi-automatic rifles from the car of an undercover agent. Following his arrest, he detailed his plans for the attack and “his intent to cause mass casualties in support of ISIS,” according to an affidavit written in December by FBI agent J. Troy Amundson.

Read more: Cleveland.com