The Century 16 movie theatre is seen where a gunmen attacked movie goers during an early morning screening of the new Batman movie, 'The Dark Knight Rises' July 20, 2012 in Aurora, Colorado. (Photo by Thomas Cooper/Getty Images)
WASHINGTON (AP) - A federal law enforcement official says the semi-automatic assault rifle used in the deadly Colorado movie theater shooting jammed during the attack.
The official said late Saturday the rifle had a high-capacity ammunition magazine and that it jammed, forcing the suspect James Holmes to switch to another weapon. The official spoke on condition of anonymity to discuss the investigation.
Aurora Police Chief Dan Oates has said a 100-round drum magazine was recovered at the scene of the shooting in suburban Denver. Oates said such a weapon would be able to fire 50 to 60 rounds a minute.
Police say Holmes also had two Glock pistols and a shotgun.
Holmes, a 24-year-old former graduate student, is in custody. The attack early Friday killed 12 people and wounded nearly 60 others injured.
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7/22/2012 1:13:33 AM (GMT -5:00)