A “reckless”  Texas father who shot his daughter dead  during her visit from the UK was a “teaser” who showed her his gun to rile her during a politically-charged argument about firearms, a British coroner has ruled. “Functioning alcoholic” Kris Harrison was not trained to use his Glock 9mm pistol, which he claimed “just went off,” killing his daughter Lucy, 23, at his home in Prosper, Texas,  BBC News reported . Lucy, who lived with her mom in Warrington, England, was preparing to fly home