Let it go. Let it go. [screaming] >> September 5th, 2020, Chicago, Illinois. At approximately 1:40 a.m., officers with the Chicago Police Department respond to multiple calls of an aggravated assault with a knife. My friend tried to pull out of the driveway in his car and this guy ran out to the window and I think he might have slashed his form. >> Where is he right now? >> Uh, he's walking up on me. He's chasing us with a knife for no reason. >> GO. DUDE, RUN. RUN, DUDE. >> You chasing somebody else. >> We're following the suspect right now because Do not follow. >> We're just trying to see where he goes. >> Okay, sir. You're putting away putting yourself in harm's way. Stop. >> This guy cannot get away. >> Okay. If you put yourself Sir, this is on the recorded line. Do not put yourself in harm's way. Stop following the offender. >> Yeah, this was Venom Park on 49th. >> Ignoring warnings from the 911 dispatcher, the witness continued to [music] follow the suspect and was able to lead police to his exact location in the middle of Vitten Park. >> Do you see him? >> Hey, put your hands up, >> my man. Put your hands up. >> Put your hands up. >> Let's see your hands. Put your hands up. >> Hands up now. >> Put your hands up. Do you understand? >> Hands up. >> Uhhuh. Don't >> Don't you dare. >> Put your hands up. [music] >> Put your hand Put your hands up. PUT THE [ __ ] KNIFE DOWN. DROP THE GODDAMN KNIFE. >> DROP IT. >> Oh [ __ ] >> Let me go. There you go. >> Here from the second officer's body cam, you can see the suspect shake off [music] the effects of the taser, stand back up, grab the knife, and charge the female officer. He grabs the sergeant by her ballistic vest and stabs her multiple times in the lower abdomen before being shot by police. Miraculously, the sergeant's ballistic vest kept the knife from penetrating each time. She just doesn't know it yet. >> By police. >> I'm fine. I'm fine. >> Oh [ __ ] You okay? >> I'm fine. >> You okay? >> I'm fine. >> You all right? >> No. No. No. I'm fine. He did. >> It didn't go through. It didn't go through. >> He stabbed me in my vessel. >> It didn't go through. It didn't go through. >> Is there a weapon or anything? >> There's a knife underneath him. >> Stabbed a stabbed Sarge. She's okay. >> I'm okay. >> Sit down. Sit down. >> I'm okay. >> Sit down. Sit down. >> Sit down. I don't know what the [ __ ] happened. >> I don't know what happened. >> My gun didn't fire. I squeezed the trigger. >> I trigger. >> I pulled my gun back. Why did I not put my gun back? Why did I put my gun back? >> Huh? >> Why did I put my gun back? >> I don't know. that taser out. That's why the bad thing is having these tasers out. I'm okay. >> Saved my life. Yes. Yes. I'm okay. I'm okay. >> Here, Officer Johnson, the third officer to arrive on the scene and the one who ultimately saved the sergeant's life by shooting the suspect, tells the story as he sees it. >> I don't know, man. I was my guy. They roll the park. I see the pop the t. I start running. I start running and then he and then as he start running towards us grabs her and he start try to stab him with the knife in the vest and then >> so he he grabbed charge. >> He grabbed charge stabbing her and he stabbing on the vest and we was trying to I was trying to get a clear shot. She was in the way >> and then she stepped back and >> 815 850 you guys. Okay. The incident commander arrives on the scene and the sergeant tells him her version of the events. Okay, catch your breath. Catch your breath. Catch your breath. >> Was it that right here? That's the guy we encountered. >> He stuck the knife. >> He stuck an It didn't penetrate. It didn't penetrate. I tased him >> and it didn't work. >> He pulled out the taser. >> Pull out taser. We had to shoot. He came up the Okay. Calm down. Calm down. Calm down. What do you got on you? Did you blood? Okay. >> Shayon Warner was pronounced dead at the scene. Investigators recovered the 10-in butcher knife adjacent to his body along with 20 spent shell casings. Sergeant Salgado survived her injuries, her ballistic vest preventing the knife from causing fatal wounds. The Civilian Office of Police Accountability investigated the incident. They officially ruled that the shooting of Shawn Warner was justified and within policy. What would you have done? Would you have tased the suspect like Sergeant Salgado chose to do, or would you feel within your right to use lethal force? Let us know in the comments. And thank you for watching this episode of Justice in America. Stay safe.