Ahmad Al Aliwi Alissa, 21, allegedly laughed and chuckled to himself as he went on a rampage through a King Soopers grocery store in Boulder, Colo., this week, killing 10 people.

Ahmad Al Aliwi Alissa, 21, allegedly laughed and chuckled to himself as he went on a rampage through a King Soopers grocery store in Boulder, Colo., this week, killing 10 people.