and with this evidence, dale bradley was arrested and charged with bryan ruff's murder. >> it was shockingody could do something so horrific, let alone somebody that claimed to be a good friend. >> prosecutors believe dale either knew or strongly suspected bryan ruff was having an affair with his wife, kristi, and was afraid she was going to leave him. >> i think that he was so angry that kristi and bryan betrayed him that he was going to make him pay. >> the forensic evidence suggests dale's plan was to eliminate the person he perceived to be his competition. since he knew bryan's hours and when there would be the least amount of traffic, he knew exactly when to strike. dale probably forced bryan into the trunk at gunpoint. bryan tried to kick his way out of the trunk during the 30-minute drive when a piece of the paint became embedded in his boot. when dale got to the burial spot, prosecutors think he ordered bryan to remove his boots so he couldn't run away. he then forced him over to a shallow grave, which prosecutors think he dug earlier that day. then shot him with a .22-caliber pist