A bizarre controversy erupted over the transplant patient who got the world’s first genetically altered pig heart. David Bennett made headlines as a medical pioneer this week after a historic eight-hour operation. But now it’s being revealed that Bennett had a checkered past, and served six years in prison after an apparent fit of jealousy led him to stab a man multiple times who he thought was flirting with his wife. The man was paralyzed from the waist down. Now, his family is outraged anew.