Creepy science: Man placed at crime scene by blood-filled leech

Peter Alec Cannon didn't think he had left any evidence at the scene of the robbery. But little did he know that police would find a leech near the safe he broke into -- a leech that contained a bit of his blood, allowing them to ID him via DNA testing.

[ ]

ITWorld DealPost: The best in tech deals and discounts.
Shop Tech Products at Amazon