 With the name they do have, even though they're not releasing it to the public, and as they wait for biometric confirmation, they've already started carrying out law enforcement operations nearby in western Pennsylvania at locations that may be associated with this young man. They've undoubtedly tried to scour his social media. If there is any, talk to people who knew him, relatives, friends, because they do want to, as you heard the authorities say, understand a possible motive herewith.