29-year-old deputy killed in Denver suburb shootout

The suspect had fired more than 100 times in an hour and a half, police said.
3:00 | 12/31/17

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Transcript for 29-year-old deputy killed in Denver suburb shootout
We begin with the breaking news, the deadly police ambush outside of Denver. Five deputies shot responding to a domestic call. At least one killed. The gunman, unloading more than 100 rounds in seconds. The row of officers saluting as the fallen deputy is carried away. Authorities revealing they have confronted the suspect before. Clayton Sandell leads us off. Reporter: It began as a noise complaint that quickly became an ambush. Shots fired! Shots fired! Shots fired! Reporter: Early this morning deputies arrived at this apartment complex in highlands ranch, Colorado, a Denver suburb, for a dispute between a man and his male roommate. At 5:55 A.M., the suspect, armed with a rifle, suddenly opens fire. I need S.W.A.T. Right now. I need medical. Reporter: Four deputies and one police officer are shot. It was like an exchange of gunfire. Pop, pop, then pop, pop, pop, pop. And then return fire. Reporter: All of the officers manage to retreat outside except for one. 29-year old deputy zackari Parrish. We have one deputy down inside the apartment. I'm not getting anything from him. All of us have been hit at least once. All of them were shot very, very quickly, and they all went down almost within seconds of each other, so it was more of an ambush type of attack on our officers. Reporter: Over the next hour and a half, the suect fires more than 100 times. We need to get our officer out of there! Reporter: Gunfire even heard over the radio. Firing several rounds, firing inside again. Reporter: At around 7:30 A.M., officers enter and confront the suspect in a final shootout. The gunman is killed. We are deeply saddened by the loss of zachari. When I sat with his wife and held her hand, I could see in her eyes her life is over. Reporter: The other wounded officers are all now in stable condition. Okay, we just heard it rit there. The other officers in stable condition. Clayton, what have you learned about the suspect tonight? Reporter: Tom, they have not released the suspect's name, but they say he was known to officers. They have dealt with him in the past, but they say he did not have a criminal record. Tom? Clayton, thank you. Now to major cities on high

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

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