Sonny Archuleta triple murder in Aurora: Guns purchased legally (55-57)
As for the weapons used by Archuleta, police at the murder scene recovered .40-caliber handgun, an AR-15 rifle and a pump action shotgun. But the APD has determined that all three of them were legally purchased from licensed gun dealers. "Based on Archuleta's history there is nothing in state or federal law that prohibited [him] from purchasing or possessing these firearms," the department announced.
Of course, an AR-15 was also used by Holmes in the July 20 attack on the Aurora Century 16, which killed a dozen people and injured seventy others -- and legislators and officials across the country have floated possible bans for such assault weapons. But it's unclear at this writing whether such measures would have saved the lives of three people needlessly cut down on Saturday.
Look below to see a CBS4 report on the shooting.
More from our News archive: "Columbine to Newtown: A tragic list of school shootings since 1999."