In 1697's The Mourning Bride, English politician, poet, and playwright William Congreve memorably wrote "Hell may hath no fury like a woman scorned," but he'd never had the great fortune of meeting Dan Schneider, the small-town Louisiana pharmacist who went Sherlock Holmesing after his 22-year-old Danny Jr. got shot in the head during a drug deal in New Orleans.
Dan Sr. succeeded at finding his son's killer, something the police had failed to do.
Along the way, Dan also brought down an infamous pill mill doctor by the name of Jacqueline Cleggett.
The entire documentary is terribly sad, of course, and nothing Dan accomplishes on this side of eternity will bring his beloved Danny home, but to see the zealous lengths Papa Bear goes to (even after admonishment from his own wife) is powerfully moving.
Dan is like a dog with a bone, a rhinocerous on a scent, or a shark after chum, and his perseverance never wavers. Not one iota, not for a minute, not for years.
He goes and goes and goes, the boundless Energizer bunny who never accepts no for an answer.
God bless him, and may their Danny Jr. rest in peace and power.