Tennessee weighs doctor's role in next execution after botched attempt

Anthony “Darrell” Hines, on death row for four decades, is set for a Thursday lethal-injection execution in Tennessee, the first since a May botch that left a backup IV unresolved and witnesses describing the prisoner’s suffering. In the wake of that failed attempt, state officials have not disclosed whether Dr. Mark Walton Fowler will participate in the next execution, prompting questions about his qualifications and the doctor’s role in upcoming deaths.