Frances Fritts was murdered in a house fire in Brenham, Texas in 1994. Her husband Charles walked out without a scratch. He had $800,000 in insurance lined up, a girlfriend abroad, and a Mercedes ad running in the local paper.

Investigators had plenty of motive. What they needed was proof the fire was set deliberately. That proof came from two dogs named Samantha and Jager - hydrocarbon-sniffing K-9s who alerted to accelerant in the ruins of the Fritts home and helped put Charles away for life. And when the defense challenged their evidence in court, the Texas Court of Appeals made history. Fitts versus State, decided in 1998, became the case that put arson dogs in Texas courtrooms permanently.

Melissa covers Frances's case and the remarkable legal legacy it left behind - including a note from the heart about a victim she couldn't ...