(NewsNation) — Video captured during Saturday's shooting at a Twin Falls, Idaho, In-N-Out appears to show the moments gunfire erupted, leaving three people dead and seven others injured. Advertisement AdvertisementKoehn said the shooter was about 30 to 40 feet away and appeared to be armed with a semi-automatic rifle. What we know about the victims, gunman in Idaho In-N-Out shootingKoehn said he then witnessed another person draw a handgun and exchange gunfire with the suspect. In a second video, the suspect appears to shout "black shirt" toward responding officers as commands are heard from off camera. (Storyful)This screen grab of social media video shows a suspect with a rifle at the In-N-Out Burger in Twin Falls, Idaho, on Saturday.