This article seems to be hinting that God spared Pike from the death penalty so that she had extra time to convert from Buddhism to Christianity. I think the real lesson here is that lethal injection is barbaric and shameful.
dallasexpress.com
Christa Pike Case Raises Questions About Evil, Death
Christa Pike survived two doses of pentobarbital. Her case mixes a Satanic-imagery murder, Buddhist practice, and an unanswered question.