COLUMBUS, Ohio (AP) — A condemned Ohio inmate who weighs at least 480 pounds wants his upcoming execution delayed, saying his weight could lead to a "torturous and lingering death."

Ronald Post, who shot and killed a hotel clerk in northern Ohio almost 30 years ago, said his weight, vein access, scar tissue and other medical problems raise the likelihood his executioners would encounter severe problems. He's also so big that the execution gurney might not hold him, lawyers for Post said in federal court papers filed Friday.

"Indeed, given his unique physical and medical condition there is a substantial risk that any attempt to execute him will result in serious physical and psychological pain to him, as well as an execution involving a torturous and lingering death," the filing said.