TERRE HAUTE, Ind. (AP) - The man next on the list to be executed by the federal government after a nearly 20-year hiatus ended this week may have a better chance of avoiding lethal injection, legal experts say, because he suffers from dementia and so, his lawyers say, can no longer grasp why he’s slated to die.Wesley Ira Purkey, convicted of a gruesome 1998 kidnapping and killing, was scheduled for execution Wednesday at the U.S.