John picked up a young prostitute to have sex with her in his car and shot her in the head while they were doing the business. That’s one way to avoid paying for intimate services. Maybe she sucked and asked for too much? On a plus side, with that crack in her skull, she can be easily skull fucked.
I don’t think many prostitutes get to grow old. They either get killed while still young or succumb to crack and booze and became filthy junkies with no future. Dude who shot this one in the head probably had a hell of a cleanup job to do on his car’s interior.