to find that pocketbook. >> meanwhile detective barker went back to the bruns' home to question bill bruns further. when she entered the bruns' home, she noticed something new. >> i remarked to bill bruns, gee, bill, you've got new carpet. he denied that. no, this is the same carpet. well, you've had the carpet cleaned. no, no, i didn't have it cleaned. i just sprinkled it with this rug refresher and vacuumed it, and i was astounded because it was sparkling clean. >> neighbors say they saw bill bruns struggling to get a carpet steam cleaner into his house. why would bruns lie to police about shampooing his carpet? pearl's daughter confronted her stepfather with her suspicions. >> i sat down with bill one day at the kitchen table, and i spoke with him. and i told him, you know, bill, you're the last one that saw my mother. you're the only one that would know what happened to her, and he just kind of sat there and looked at me and never said a word. >> police used cadaver dogs to search the bruns' home. the dogs are trained with a chemical formula called pseudo corpse, which mimics the smell

bill. the federal investigation was about whether or not darren wilson violated michael brun's civil rights. and clearly, as soon as since the federal government has chosen not to prosecute, they are indicating that his civil rights weren't violated. dolls that mean that darren wilson didn't profile him? of course it doesn't. we do know he did profile him. >> i think you both don't understand what the statute says. if any misconduct took place in the investigation, it doesn't -- it can go from the actual shooting to how it was prosecuted. then the federal government could file civil rights charges saying that an american citizen, michael brown, rights were violated because the prosecutors didn't do their job or the police didn't do their job or whatever. they have a big tent to go into. >> but that wasn't the line of the federal investigation, bill. >> it has to be evidence to that. >> yeah. there had to be evidence. >> and the prosecutor in missouri chose to say presenting that which would lead to an indictment that he would present all the facts and let the jury sort it out. no one does t