Criminal couples: The most nefarious unions in history
Alton Coleman and Debra Brown, responsible for the death of eight, were apprehended on July 20, 1984
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They say you shouldn't mix business with pleasure. But for these couples, it's hard to determine which was which.
Some shared an intense love for each other, and others simply shared an obsession. Click through the following gallery to learn more about these twisted lovers.
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