Suspected Boulder gunman Ahmad Al Aliwi Alissa allegedly laughed as he moved through grocery store Monday, firing rounds and killing innocents, according to a local news report.

Fox 35 Orlando reports Angelina Romero-Chavez was in the grocery store’s deli when the attack began. She said, “We could hear a man chuckling. Gunshots were close. We believe it was him chuckling.”

The Denver Post noted officers who responded to the scene radioed, “This guy is laughing at us.”

Alissa carried a handgun and an AR-15 variant firearm into the grocery for his attack. Police do not believe he fired the handgun.

He killed nine civilians and one police officer, a ten-year Boulder Police Department veteran and a father of seven.

Breitbart News observed Alissa purchased the firearm he used six days before the attack. He complied with all gun controls, passing a background and buying the  gun at retail.

Reuters pointed out Alissa made “the purchase legally.”

AWR Hawkins is an award-winning Second Amendment columnist for Breitbart News and the writer/curator of Down Range with AWR Hawkinsa weekly newsletter focused on all things Second Amendment, also for Breitbart News. He is the political analyst for Armed American Radio. Follow him on Twitter: @AWRHawkins. Reach him at awrhawkins@breitbart.com. You can sign up to get Down Range at breitbart.com/downrange.