As Christa Pike waits to become first woman executed in Tennessee, here's a look at death penalty cases that ended controversially.

Christa Gail Pike was just 18 years old when she committed a crime that dominated headlines for years: She tortured and murdered her romantic rival in Tennessee and later showed off a piece of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Executioners rarely botch state-sponsored killings. But when they do, it leaves a mark for all of history. The Buffalo News wrote ...