The dude was quite a disgusting nutter, not just for his sexual whatever-you-call it. Apparently he hated blacks, so much so that he taught the same hatred to at least one of his older sons ... who is in prison in Texas for arson against a majority-black church.
He had 5 children by 3 women, 3 by the wife he murdered ... one of whom he also murdered. The wife he murdered was also his first cousin once removed. I don't understand genealogists-speak, but IIRCC, the woman he married and murdered was the daughter of his uncle. IOW, he fulfilled the stereotype of Appalachian area families, but in Rhode Island.
Just a real upstanding guy ... ummmmm, gal ... OK, he was a nutter. I hope his other kids are and grow up to be normal decent people who marry someones whose ancestries are geographically far from their father's.