These "Criminal Minds" unsubs will break your heart with these backstories. For this list, we’ll be looking at the BAU’s unknown subjects who have the saddest origins. Our countdown includes William Taylor, Paul Westin, Charles Johnson, and more! Which unsub did YOU sympathize with the most? Let us know in the comments!

Watch more great "Criminal Minds" videos here:
Top 10 Most Shocking Criminal Minds Reveals    • Top 10 Most Shocking Criminal Minds R...  
Top 10 Biggest Criminal Minds Scandals    • Top 10 Biggest Criminal Minds Scandals  
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