19-year-old Santino William Legan has been identified as the gunman who opened fire with an assault rifle at a garlic festival in Gilroy, California. Legan killed three people and wounded a dozen others, says Reuters. Gilroy Police Chief Scot Smithee said Legan killed a 6-year-old boy, a 13-year-old girl and a man in his 20s. Shortly before the shooting, Legan posted a picture of the garlic festival on his Instagram account. He captioned the photo: "Ayyy garlic festival time.