Colorado suspect bought gun six days before shooting

The suspect, Ahmad Alissa, had a history of angry outbursts and was previously arrested for assaulting a classmate.

The suspect accused of opening fire at a crowded Colorado supermarket was a 21-year-old man who had a history of physical and angry outbursts, and he had bought an assault weapon less than a week before the shooting, according to police reports. Ahmad Al Aliwi Alissa bought the weapon on March 16, just six days before the attack at a King Soopers grocery store in Boulder that killed 10 people, according to an arrest affidavit. It was not immediately known from where the gun was bought. A law enforcement official briefed on the shooting said the suspect’s family told investigators they believed Alissa was suffering some type of mental illness, including delusions. Relatives described times when Alissa told them people were following or chasing him, which they said may have contributed to the violence, the official said. The official was not authorised to speak publicly and spoke to The Associated Press news agency on condition of anonymity.