Subway shooter Frank James indicted

NEW YORK (CBS 58) -- The man accused of the mass shooting on the New York City subway is facing two serious federal charges.

According to an indictment unsealed today, on May 7, Frank James is facing one count of a terrorist attack as well as a firearms charge.

Those charges carry maximum sentences of life in prison if he is convicted.

The 62-year-old, who previously lived in Milwaukee, was arrested on April 13 for the shooting in Brooklyn that left 29 people injured, 10 by gunfire.

A motive for the attack remains unclear.