YMMV / Manhunter (DC Comics)

• Complete Monster: Walter "Walt" Pratt was the illegitimate son of the Justice Society heroes Phantom Lady and Iron Munroe. Growing up in a series of foster homes, Walt gained a streak of violent misogyny that manifested in brutally killing women later in life. Abusing and eventually murdering his own wife, Walt was sent to prison for the majority of his daughter Kate Spencer's life. When Kate was an adult with a young son, Walt returned to her life, revealing he was dying of bone cancer. Seeking to extend his life, Walt tried to kidnap his own grandson Ramsey to harvest his bone marrow to save his own life while paying the two supervillains he hired to do the transplant with Kate's ex-husband Peter, allowing the villains to torture him to death on camera. When he learned Ramsey was not a match, he tried to blackmail Kate to sacrifice herself in the transplant by threatening to beat Peter to death using Ramsey. When he realized there was no further way to survive, Walt proceeded to attempt to kill both Kate and Ramsey, just to ensure his whole bloodline would be extinct.