In 2011, Michael Frye was convicted of brutally beating and raping 4 women in Marion County, Florida. His DNA was connected with all four women. I am personally friends with one of his daughters and per her account, he would go out and commit these crimes, and then come home and act like a family man. He was married with three daughters and none of them had any idea he was doing this until the authorities came to arrest him. One of the victims testified that Frye took her into the woods to a secluded area where he threatened to slit her throat with a box cutter if she didn't comply. Michael Frye was sentenced to life in prison. There is a documentary on this story on Tubi called The Devil You Know, season 4 episode 2-The Family Man. 

Check out the documentary on Tubi: The Devil You Know, season 4-Episode 2/The Family Man