identified and at least one of them linked himself to isis on social media. tonight we learned from a source that the other would be terrorist spent a few years in pakistan in the 1990s. his father was pakistani and the sources describe his mother as white american. we ll have more on what we re learning about both gunmen in just a moment. meanwhile, united states authorities are looking into whether the incident in texas has any link to international terrorism as investigators try to piece together the timeline for the plot. cnn justice correspondent pamela brown reports tonight. god bless america reporter: the incident unfolded quickly in a dallas suburb at a controversial art exhibit showing cartoons of the prophet muhammad. police say the two men pulled up to the parking lot in a dark-colored sedan. a patrol car blocked the entrance. a police officer and a security guard stepped out of the car. the attackers both in bulletproof vests jumped out of their car with ass
god bless america reporter: the incident unfolded quickly in a dallas suburb at a controversial art exhibit showing cartoons of the prophet mohammed. police say the two men pulled up to the parking lot in a dark-colored sedan. a patrol car blocked the entrance. a police officer and a security guard stepped out of the car. the attackers both in bulletproof vests jumped out of their car with assault rifles and opened fire. the unarmed guard was shot in the ankle. the officer, armed with only a service pistol killed both gunmen. under the fire that he was put under, he did a very good job. and probably saved lives. we re going to stop this right now. reporter: the controversial event inside was nearing an end when the shots were fired. security moved the 200 people attending to a secure location. none of the attendees were hurt. we were actually walking out and the officer starts blowing a whistle and telling people to get down. reporter: simpson is believed to h
A threat. through this busted door way the gunmen lived. he grew up in pakistan and still has family there. elton simpson, convicted of lying to federal agents in 2011, but no other history of violence. neighbors and their apartment complex saw nothing outwardly alarming from the two roam mates. ariel whitlock had been texting simpson who put his car up for sale. i m getting goose bumps right now. i wanted to buy that car. and knowing it is on, like, on the news i see it, just blowing up. i was going to purchase that car. you don t think like, maybe he is just going to go plot something. you are giving the money to help him go plot something. like how i feel now. that s crazy. neighbor tim rains never suspected, in fact he saw nadir sufi as a good samaritan, who helped him. in a medical emergency.
Father and described his mother as white american. when they divorced, he went to pakistan with his father and his brother. he went to a prestigious elite private school in islamabad and then suddenly he left pakistan. there s a gap of knowledge in what we know. in his mid-30s, though, he came here to this apartment complex to be roommates with the other would-be gunman. it is through this busted it is through this busted doorway the would-be gunmen lived and hatched a plan. nadir soofi grew up in pakistan and still has family there. elton simpson, no other history of violence. neighbors in their apartment complex saw nothing outwardly alarming from the two roommates. ariel whitlock had been texting simpson who put his car up for sale. i m getting goose bumps thinking about it because i wanted to buy that car. knowing that it s on the news, i see it and it s just blown up. i was going to purchase that car. you don t think like maybe he s going to go plot something and you re giving