evidence of a violent attack that co-workers never saw coming. 39-year-old steve livo made an appearance in court. four days after he killed his co-worker. the two have been assembling all terrain vehicles. but what exactly prompted the attack is unknown. according to documents submitted in court police found a severed ear and blood on the walls and floor inside the vacant building next door. prosecutors say they have a strong case without it. >> at this point we are confident in the charges we have filed. >> how is everything working out? >> workers are devastated. he was well liked and willing to do any job. the owner said he never failed a drug test and never exhibited unusual behavior, but he did say he seemed off the day of the attack. >> he looked tired that day and said he hadn't slept. he was a quiet guy anyway. >> they hoped to find him alive. they searched his home after discovering the crime scene. now friends and family say it is up to them to find him. >> take a look. take five minutes. take the dog for a walk. help me find my brother. >> a plea for his family desperate to b

evidence of a violent attack that co-workers never saw coming. 39-year-old steve livo made an appearance in court. four days after he killed his co-worker. the two have been assembling all terrain vehicles. but what exactly prompted the attack is unknown. according to documents submitted in court police found a severed ear and blood on the walls and floor inside the vacant building next door. prosecutors say they have a strong case without it. >> at this point we are confident in the charges we have filed. >> how is everything working out? >> workers are devastated. he was well liked and willing to do any job. the owner said he never failed a drug test and never exhibited unusual behavior, but he did say he seemed off the day of the attack. >> he looked tired that day and said he hadn't slept. he was a quiet guy anyway. >> they hoped to find him alive. they searched his home after discovering the crime scene. now friends and family say it is up to them to find him. >> take a look. take five minutes. take the dog for a walk. help me find my brother. >> a plea for his family desperate to b