Man with diaper fetish viciously kills 5-year-old and his grandparents over patent dispute

Five-year-old Nathan O’Brien loved superheroes and his grandparents, Kathy and Alvin Liknes. But the little boy’s dreams of becoming a comic book-like hero of his own were cut short when Douglas Garland, one of Alvin’s relatives by marriage, kidnapped, tortured, and killed Nathan, Kathy, and Alvin. Investigators learned a disagreement over a patent led to the vicious murder that changed a family forever.