Teenager Mawa Doumbia was last seen leaving her Newark home in 2016; her body was found in 2019. Police have now charged convicted serial killer Khalil Wheeler Weaver in her death.
Italy's "Monster of Florence" targeted up to eight couples who were engaged in sexual activity between 1968 and 1985, leading to several suspects and theories over the years.
Reginald Kimbro has admitted to raping and killing Molly Jane Matheson and Megan Getrum, as well as raping four other women, as part of a plea deal to avoid the death penalty.
Nona Cobb was once thought to be the victim of a serial killer Sean Patrick Goble, but DNA connected the 30-year-old murder to a man in Mississippi: Warren Alexander.
After jurors failed to decided whether serial killer Robert Tyrone Hayes deserved the death penalty or not, a judge gave him three back-to-back life sentences instead.