... On December 9, a person of interest was detained at a McDonald's restaurant in
Altoona,
Pennsylvania, about 280 miles (450 km) west of New York City. He had with him a gun and silencer similar to the one used in the shooting, a two-page
manifesto "criticizing health care companies for putting profits above care", and a fake ID with the same name as the alleged shooter used to check into the Manhattan hostel. The suspect was identified and arrested on local charges in Altoona relating to the gun, but has not yet been charged in relation to the killing ...