Officers found the man Friday at an apartment in the 300 block of 11th Avenue on his back in the hall outside the victim's apartment, covered in cuts, scrapes and bruises.
The apartment resident said he'd never seen the man before. Then a second man in the victim's apartment acknowledged he had been "partying" at the apartment with the pantless man the night before.
Police called for an ambulance to take the man to a hospital. It's not clear how he sustained the cuts and scrapes.
His coat? He was wearing it.