American killer is too fat to die In 2008, federal courts rejected arguments by condemned double-killer Richard Cooey that he was too obese to die by injection. Cooey's attorneys had argued that prison food and limited opportunities to exercise contributed to a weight problem that would make it difficult for the execution team to find a viable vein for lethal injection. Cooey, who was 5-foot-7 and weighed 267 pounds, was executed Oct. 14, 2008. The son of Post's victim said last year that he's still waiting for justice to be served for his mom, Helen Grace Vantz. Post shot Vantz twice in the back of the head as he robbed the motel where she worked, making off with about $100 and a TV. Some have said that since it's been so long just let [Post] stay in prison for the remainder of his natural life. No! William Vantz wrote to the Morning Journal newspaper, adding, "We all have recourse to the law and it's time he paid his debt to society. It's way overdue. Medical personnel have had a hard time inserting IVs into Post's arms, according to the court filing. Four years ago, an Ohio State University medical center nurse needed three attempts to insert an IV into Post's left arm, the lawyers wrote. Post has tried losing weight, but knee and back problems have made it difficult to exercise, according to his court filing. Post's request for gastric bypass surgery has been denied, he's been encouraged not to walk because he's at risk for falling, and severe depression has contributed to his inability to limit how much he eats, his filing said. While at the Mansfield Correctional Institution, Post "used that prison's exercise bike until it broke under his weight," according to the filing.