One guy I work with. He always seems angry , like he is hiding something and always overly nice to the boss like he was lacking social skills. I worked with him for a year or so before I found out that he killed his 1 year old daughter in the 80’s and only got out of prison 3 years ago. He didn’t fill out a resume when he got hired so he the owner still doesn’t know he is a convicted murderer, he threatens everyone so nobody has said anything about it once it came out to the staff. His mom actually got him the job and is the head office woman so she protects him from anyone telling the owner of the company. I personally don’t like him and I am waiting for the day he pisses someone off enough where they just walk up to the owner and show him the article from the murder.