2 Iowa Police Officers Ambushed and Killed While Sitting in Their Patrol Cars

The shootings led to a desperate manhunt, and now a suspect is in custody.
1:58 | 11/02/16

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Transcript for 2 Iowa Police Officers Ambushed and Killed While Sitting in Their Patrol Cars
onto other news tonight, and to the deadly ambush in Iowa. Two police officers killed, as they sat in their patrol cars. The shootings triggering an urgent manhunt. Tonight, a suspect is in custody. ABC's Eva pilgrim is in Iowa. Reporter: Tonight, this man in custody after two Iowa police officers were killed in cold blood. These officers were ambushed. It doesn't look like there was any interaction between these officers and whoever the coward is who shot them while they sat in their cars. Reporter: Officials say the attack started just after 1:00 A.M. 24-year-old Justin martin is shot and killed sitting in his police car. Polk county does confirm officer down. Reporter: 20 minutes later, more shots, just blocks away. Another officer hit over there. Reporter: Tony beminio shot in his car. Ambulance rushed him to the hospital, but he does not survive. The manhunt now under way. At 7:00 A.M., authorities identify the suspect as 46-year-old Scott Michael Greene. Officials shutting down area schools. Then, at 9:00 A.M., a break. Subject is in custody. Reporter: Officials say the suspect is on a rural road when he turns himself in by flaking down a passer-by. Have I committed a crime? We're asking you to leave. Reporter: Authorities investigating a video of this incident two weeks ago. Greene was kicked out of a high school football game after complaints he was flying a confederate flag in the stands. He apparently filmed as he argued with police. When you fly a confederate flag standing in front of several African-American people, that's going to cause a disturbance. I'm not saying -- I never said it wasn't your right. Did I say it wasn't? Reporter: David, Greene has not been charged yet. Here, we have seen a steady stream of people in urbandale. This is the first officer killed in the line of duty for this department. David? Eva pilgrim there in Iowa.

This transcript has been automatically generated and may not be 100% accurate.

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