The person who was the most recent and most devastating had criminal intent, though I had no idea. He was someone our family had called a friend for over a year. We welcomed him in like family. He was 63 years old (though not a frail old man at 6'2 and 260#) and I always described him as a "quiet Southern Gentleman". He was very well mannered, polite and selfless (we thought)...until he kidnapped me at knifepoint, sexually assaulted me, beat and cut me then grabbed a loaded gun, convincing me I was going to die before my husband rescued me and got the police. It was not until later that we discovered he had already murdered two people (one his wife) by shooting and stabbing them and had tried unsuccessfully to stab another, in addition to a rather lengthy criminal record of various crimes.
Thankfully, he will not do so, ever again. His first murder he was acquitted of, his second he got manslaughter and served 6 in prison, then got a full pardon on all. The attempted stabbing he got a bit of jail time and most of the rest were a few days in jail or errors in investigation resulted in toss out of charges. With me, he got 2 consecutive life sentences and additional sentences of 15, 25 and 25 years on top of them. He will never see the light of day outside of prison. Most days, I think I would trade what he got for what I got. I think my prison is worse.