hunts to drug dealers, felons, crime scenes, even into the hands of a mentally ill person, all prohibited from owning firearms. cnn's investigation, including an admission from the shooter himself, found that the .38 caliber smith & wesson used by easy chang that nearly killed tarek usladi can be traced to mary hunt. the hunts never responded to cnn. derek asked us to come into his trailer with no camera. >> do you want to come in? >> reporter: that was derek. he's still on probation for another two years, he says, and doesn't want to talk about the case. i explained the story to im . i explained to him about tracking the guns to crimes. i explained to him in particular that a smith & wesson that ended up in the hands of easy chang and that easy shot an innocent