him. lee bates served time after acting as richard matt's accomplice. he testified against him and in a phone interview with anderson cooper called matt evil. >> if you wanted to take a picture of the devil that's the face you would see. >> reporter: bates remembers matt shoving a knife sharpener in his victim's ear and breaking his fingers before killing him. >> i have seen him kill. he did kill mr. rickerson, his old boss in my presence in a fit of rage. he reached in to the car, grabbed mr. rickerson by his head and snapped his neck in front of me. >> reporter: matt worked for rickerson and was fired for poor performance,ing weeks before his murder according to trial. erik jenson knew richard matt