Ahmad Al Aliwi Alissa was identified by authorities Tuesday as the gunman who <a href="https://www.cnn.com/us/live-news/boulder-colorado-shooting-3-23-21/index.html" target="_blank">opened fire at a King Soopers grocery store</a> in Colorado, killing 10 people, including a Boulder police officer.

The name of the 21-year-old suspect, who is in custody, was released at a news conference