From the article, it’s clear that their first resort was to call the police when he was banging and kicking on the door. The woman was on the phone with the police when he broke the window and attempted to open the door through the broken pane.
While the woman was on the phone with police, Donofrio broke a glass window on the front door “and reached inside to manipulate the doorknob,” at which point the male resident fired the shot through the broken window, striking Donofrio in his upper body, police said.