A homeless man pleaded not guilty to charges of detonating an explosive device outside a Southern California Chabad House.
Ron Hirsch, 60, entered his plea Monday in US federal court in Los Angeles. He could face up to 70 years in prison.
He is charged with using an explosive device to damage property, using an explosive to commit a federal felony, using a destructive device during a crime of violence and possession of an unregistered destructive device.
Hirsch, also known as Israel Fisher, was indicted in Los Angeles earlier this month for the April 7 blast at the Santa Monica Chabad House, which forced the evacuation of the Jewish center and synagogue during early morning prayers.