Ahmad Al Aliwi Alissa is accused of killing 10 people at a Colorado supermarket last month.
Iowa gun store raised alarm after firearms enthusiast allegedly said he was surprised friends didn't suspect he was the Boulder…
New details emerge on how the man behind the horrific attack managed to purchase firearms.
Suspect Ahmad Al Aliwi Alissa faces 10 charges of first-degree murder.
Police have not said whether race or religion was a factor in the shooting.
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