A 28-year-old man was stabbed to death outside a Houston nightclub in front of a dozen eyewitnesses. Shortly after the murder, the eyewitnesses identified the attacker as a convicted felon, Lydell Grant. But when the police tested DNA on the victim’s fingernail scrapings, the DNA couldn’t include Lydell as the contributor. Despite the inconclusive DNA testing, Lydell grant was arrested and charged with a murder he claimed he didn’t commit.