EVIDENCE OF LOVE ON "20/20"

Airing Friday, August 21 at 10 pm on ABC

Why would a woman leave her prominent, wealthy attorney husband to marry a convicted serial killer on death row? Rosalie Bolin says she fell for Oscar Ray Bolin, "the love of my life," while working on his case at the public defender's office 20 years ago. Not only was she convinced Bolin was innocent of the murders of three Tampa area young women, she married the convicted killer 18 years ago. In the marital settlement agreement from her first husband, Rosalie gave up primary custody of her four young daughters, while keeping parental rights and having liberal visitation.

Ten trials later, Rosalie, now a licensed private investigator, is still fighting to prove his innocence and claims she has explosive evidence that could clear him in all three murders. While some people say Rosalie is delusional, and the victim's families despise her, one former FBI agent calls her "a brilliant investigator." In fact, it was her detective work that contributed to the exoneration of another death row inmate -- a man who was in the cell right next to her husband. Over the next few weeks, there are two hearings in two of Bolin's cases. Could this be Rosalie's last chance to save her husband?

In his first television interview in almost 20 years, Oscar Ray Bolin speaks out from death row. Deborah Roberts' report also includes interviews with one of the victims' sisters. "20/20" airs on FRIDAY, AUGUST 21 (10:00-11:00 p.m., ET) on ABC.

"20/20" is anchored by Elizabeth Vargas and David Muir. David Sloan is senior executive producer.