- Ahmad Alissa of Arvada, Colorado opened fire at the King Soopers grocery store at 2.40pm
- He killed two people in the parking lot before entering the store, where he killed another eight people
- His motive is still not known; when he surrendered to police, he asked to speak to his mother
- In Facebook posts over the last 18 months, he complained that he didn't have a girlfriend and hated Trump
