巴克利是众多美国劫机者中第一个主要兴趣是金钱的人。到 1972 年,该国大部分劫机事件都涉及勒索赎金。 1971 年 11 月,巴克利本人被宣布无能力接受审判,随后被送往佐治亚州的一家精神病医院。
(Barkley was the first of many American skyjackers whose primary interest was money; by 1972, the majority of the nation's hijackings would involve demands for ransom. Barkley himself was declared incompetent to stand trial in November 1971, at which point he was committed to a psychiatric hospital in Georgia.)