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Sandra Melgar was convicted of stabbing and bludgeoning husband of 32 years.
Sheila Eddy pleaded guilty to first-degree murder charges on Jan. 24, 2014.
Kerri Rawson is the daughter of notorious "BTK" serial killer Dennis Rader.
Charlie Otero was 15 when he discovered his family members were killed by BTK.
Police interrogation video shows the moment detectives hear Dennis Rader admit to being the notorious serial killer who spent decades tormenting Wichita, Kansas.