The Mexican ID belonging to Dario Gomez Lopez was found inside a pair of gray pants left at the scene of the assault at 8th and Race Streets around 9:30 p.m. Sunday, police say.
The 22-year-old victim was standing at a SEPTA bus stop when she was grabbed and dragged towards the Ridge Avenue Spur station of the Broad Street Subway, police say. That's less than a block from the Philadelphia Police Headquarters. The woman was then severely choked and raped.
"She was strangled, she was choked...there were obviously signs of that," Police Capt. John Darby said Monday. "We want this guy off the street."
"Something about it didn't sound right because you could hear something dragging," the witness said. She asked not to be indentified. "When I called the police, they asked me all the questions and I kept stressing to them 'You need to get over here immediately, because I think somebody's in trouble.'"
Surveillance video from the scene shows the suspect running from the site of the alleged assault in only boxer shorts, a T-shirt and work boots. Left behind were his pants, wallet and ID.
Investigators are not sure if the driver's license actually belongs to the suspect or if it is real, but the photo resembles the description of the man.
Officials are asking anyone with information to call the Philadelphia Police Special Victims Unit at 215.685.3261.