A federal law enforcement official says the four weapons recovered in the deadly movie shootings were all purchased by the suspect from retail gun stores in Colorado in the last two months.

James Holmes bought one of the four guns -- the first of two Glock pistols -- on May 22 at Gander Mountain in Aurora, according to the official, who spoke on condition of anonymity because the probe into the shootings is ongoing.

The official also said that on May 28, Holmes purchased the shotgun used in the shootings from Bass Pro Shops in Denver, and that on June 7, Holmes bought the AR-15 assault rifle used in the attacks at a Gander Mountain store in Thornton, Colo.

On July 6, according to the official, Holmes returned to the Bass Pro Shops store in Denver and bought the other Glock pistol.

A second federal law enforcement official says Holmes had a high capacity ammunition clip in the assault rifle.

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