Police said Ronald Dominique lured his victims with the promise of sex in exchange for money, or by showing them a picture of a good-looking woman, supposedly his wife, and saying he wanted them to have sex with her.
Once he got them to his house, he would ask to tie them up.
If they refused, he allowed them to leave. If they agreed, he raped and then strangled or suffocated them.
Many of his victims' bodies were found dumped in sugar cane fields, often without shoes, a connection that helped police tie the cases together.
Dominique - from Bayou Blue, a small Cajun settlement about 60 miles south-west of New Orleans - was arrested in December 2006 after the ten-year killing spree.
At the time, authorities said he confessed to raping and murdering about two dozen young men in four Louisiana parishes.
He pleaded guilty to eight murders in a deal that saw him avoid the death penalty and was sentenced to eight consecutive life terms in prison.