While her 10-year-old daughter listens upstairs, failed self-help guru Derek Medina shoots his wife during an argument, then casually posts pictures of her dead body on Facebook.
Former Deputy Sheriff of Colbert, Georgia, Tracy Fortson shoots her boyfriend Douglas Benton as he sleeps, then abandons his body in a cement-filled trough in the woods.
Nicole Abusharif, 26, murders her partner Rebecca Klein for the insurance money, then leaves her body in the boot of her car for a night of drinking with her young lover, Rose.
Law student Adrienne Hickson fatally stabs her boyfriend Shawn Washington with the knife for her birthday cake when he helps his friends move instead of spending the day with her.
Applebee's waitress Rachel Wade, 19, stabs 18-year-old Sarah Ludemann to death in a vicious teen-girl cat fight over shared bad boy boyfriend Josh Camacho.
When 71-year-old Colleen Harris discovered her 73-year-old husband Robert was having a long-distance affair with a 35-year-old woman in Mongolia, she decided to teach him a lesson.
Adam Mayes' best friend has two young daughters - with whom Adam has a twisted obsession. He kills their mother and elder sister before kidnapping the two younger girls.
Over the years, Betty Lou Beets had multiple failed marriages, each of which ended in its own unique way. In 1983, she reported her fifth husband missing and tried to stage a boat accident.