Christa Pike is back behind bars after botched execution, but her ultimate sentence faces a new test

If Christa Pike's recovery from two doses of the lethal injection drug pentobarbital has left her mentally impaired, she could be spared from her death sentence, according to a leading expert on capital punishment in the United States.

"Her attorney stated that she still seems a little confused about things and is not clear on, doesn't have a clear memory of what happened to her," said Fordham Law Professor Deborah Denno, a leading expert on capital punishment. "If that continues, that it...