Four years after murdering a pair of siblings, John Cooper boldly appeared on an episode of Bullseye. The twisted killer had callously taken the lives of siblings Richard and Helen Thomas in the winter of 1985.
Evil Cooper fired at his bound victims with a shotgun down then burned their three-storey manor house near Milford Haven, Wales, leaving police to find their charred remains.
Having escaped the law for the time being, Cooper carried on living his normal life and gained a spot on the popular ITV gameshow.
Presenter Jim Bowen asked Cooper about his "unusual hobby", to which he replied: "The scuba diving … on the coast line. We’ve got deep water where you can swim over mountains and all sorts of things." While his discussion about the
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