History
The Park Prowler was a criminal who holded up people for a time in a park close to the Empire State Building, with the New York Police Department unsuccessful to arrest him.[1]
He was finally caught up by Thor and handed over to the authorities.[1]Paraphernalia
Weapons
A gun
Notes
It is unknown if that name was only gave to him by his victims and/or the New York Police Department, or if he called himself that way.