The Queen Street massacre was a mass shooting which occurred on 8 December 1987 at Australia Post offices on 191 Queen Street in Melbourne, Victoria. University dropout Frank Vitkovic entered the building on the pretext of visiting a friend, and fired on office workers at random with an illegally modified M1 carbine, killing eight and injuring five. After being disarmed, he crawled from an 11th-floor window and died on impact.