Luigi Mangione, the man accused of killing the UnitedHealthcare CEO was hit with new charges the same day he was extradited to Manhattan.

Mangione’s federal criminal complaint, unsealed on Thursday, hit him with two stalking charges, murder with a firearm, and a firearms offense. It justified the federal prosecution due to his alleged use of a bus to go from Atlanta to New York, “travel in interstate commerce,” and the use of a phone and the internet in the killing.