A federal law enforcement official has identified one of the suspects in the shooting outside a contest for Prophet Muhammad cartoons as Elton Simpson.
The official, who was not authorized to discuss an ongoing investigation by name and spoke to The Associated Press on the condition of anonymity, said investigators were searching Simpson's property in Phoenix, Arizona, in connection with the case.
Investigators believe Simpson is one of two gunmen who opened fire Sunday night outside the suburban Dallas venue hosting the contest.
Police officers shot and killed two gunmen who shot at a security officer outside the Curtis Culwell Center in Garland. The security officer was wounded in the shooting.
10:15 a.m. CDT
Police in Garland, Texas, say two men had opened fire with assault rifles on officers outside a suburban Dallas venue hosting a provocative contest for Prophet Muhammad cartoons.
Officer Joe Harn said Monday the men, killed by security officers, also had more ammunition. He said investigators searched their vehicle and detonated several suspicious items, but no bombs were found in the vehicle.
He said luggage was found in vehicle but he wasn't sure what specifically was found amid the luggage
Harn said the officer shot in the lower leg was the only officer hurt.
He said a security plan for the event had been developed over several months.
9:50 a.m. CDT
A resident of the Phoenix apartment complex where an apartment and a vehicle are being searched as part of the investigation into a Texas shooting is describing what he observed.
Douglas Hayes said he was watching a movie late Sunday night when noise outside prompted him to go out on his balcony, located right above where the vehicle was parked.
The 25-year-old says police cars flooded the complex and he saw SWAT team members throughout the complex.
Hayes said early Monday he heard a noise that turned out to be law enforcement personnel breaking into a parked white minivan. Hayes says the windows were broken, leaving glass scattered about.
Agents used a power saw to cut open the vehicle's back door. Hayes said agents processed the van for hours afterward.
9:30 a.m. CDT
FBI agents are searching an apartment and a vehicle at a Phoenix apartment complex as part of the investigation into the deadly shooting outside a suburban Dallas venue hosting a provocative contest for Prophet Muhammad cartoons.
Agents wearing FBI jackets could be seen going in and out of an apartment and also searching a white Chevy minivan. They took what appeared to be plastic bottles out of the vehicle.
The apartment is on the first floor of a two-story building. The area around the building is sealed off but residents could be seen walking about and standing on their balconies observing the law enforcement presence.
News media helicopters are keeping an eye on the Autumn Ridge Apartments complex, which has several hundred apartments in multiple buildings.
8:30 a.m. CDT
The FBI says agents are searching a Phoenix apartment as part of the investigation into the deadly shooting outside a suburban Dallas venue hosting a provocative contest for Prophet Muhammad cartoons.
FBI spokesman Perryn Collier on Monday confirmed the Phoenix residence is being searched for indications of what prompted the shooting Sunday that left two gunmen dead and a security officer wounded outside a center in Garland.
ABC News cites a senior FBI official in reporting that one of the gunmen, a resident of the Phoenix apartment, was known to authorities and was the subject of an investigation. The ABC report says the man was convicted five years ago of lying to federal agents about plans to travel to Africa, in an apparent attempt to join a terror group there.
Associated Press reporter Eric Tucker in Washington, D.C., contributed to this report.
Copyright 2015 The Associated Press.