COLUMBUS, Ohio — At about 450 pounds, Ohio death row inmate Ronald Post is so fat that his executioners won't be able to find veins in his arms or legs for the lethal injection, and he might even break the death chamber gurney, his lawyers say.

If the state is forced to use a backup method that involves injecting the drugs directly into muscle, the process could require multiple doses over several hours or even days and result in a grueling and painful end, they say.