cops. a lot of people have an ax to grind against cops. walk us through this. a lot of the most damning many testimony is from cops. officer ward here says officers is kept bb guns in their vehicles so if we accidentally hit somebody or got into a shoot-out, a killing, we could plant them, share lynn. >> this is what has been so riveting and so devastating to hear is that these are not allegations coming from just residents although i have to say, ari, these are things that residents and community members have been saying in baltimore for years. >> apparently they know. >> yes, they have been disbelieved, gas lighted. people wondered when the national media with all the cameras came to baltimore to say why are people engaged in this unrest after freddie gray is killed, this has a piece of that puzzle. and so it's been known but what you have in this case is you have actual police officers a number of whom pled guilty in this case by the way, describing the criminal enterprise,