A 20-year-old Ohio man accused of plotting to kill officials and workers at the U.S. Capitol faces arraignment on new charges in federal court.

An indictment returned in Cincinnati charges Christopher Lee Cornell of suburban Green Township with two counts that carry possible sentences of up to 20 years each. They allege attempted murder of U.S. officials and employees, and solicitation to commit a crime of violence. He also faces a firearms-related charge.

His attorney didn't respond to messages Wednesday. Cornell's father has said he was coerced.

Arraignment is scheduled Thursday afternoon. A magistrate last week concluded he posed a danger to the community and denied bond.

Cornell's attorney said he wants to be called by his Muslim name and have access to a prayer mat in jail.