Eight members of the Rhoden family were killed, in four separate homes in rural Pike County, Ohio. It’s taken five years, but now one of four suspects charged with the murders pleaded guilty Thursday. How did investigators prove who did it? Death scene investigator Joe Scott Morgan, Professor of Forensics at Jacksonville State University, explains.

“Crime Stories with Nancy Grace” on Fox Nation is also a national radio show heard on SiriusXM channel 111 airing for two hours daily starting at 12 p.m. EST. You can also subscribe and download the daily podcasts at iHeart Podcasts.

[AP Photo/John Minchillo, File]