in fact, at csi chief david kofoed himself. foed must have planted that swipe of blood himself. phony evidence to nail down a shaky case. it was a bombshell. david kofoed, division commander of the csi unit in douglas county, nebraska, was indicted on four federal charges including falsifying records and violating livers' and sampson's civil rights. kofoed pleaded not guilty to all charges, defiantly told reporters he'd rather go to prison than resign, even passed the polygraph and was cleared in an internal sheriff's department investigation. so you wake up one morning and they say you're a criminal. >> well, it kind of was like that, but it was more of a long process. and i didn't do it. i just didn't. and it doesn't make any sense. >> reporter: kofoed blamed the stain on accidental contamination. somehow, he said, blood from the victim, wayne stock, ended up on that filter paper probably out at the murder scene and somehow the kit containing that same filter paper was what he later used on the car. but kofoed did admit he bro