A CAMERA CAPTURES A FORBIDDEN ROMANCE, BUT WILL IT ALSO EXPOSE A KILLER? CBS NEWS "48 HOURS MYSTERY" -- SATURDAY, MARCH 7, 2009

On June 9, 2008, Travis Alexander, a young and successful executive, was found repeatedly stabbed to death in his Mesa, Ariz. home, the final moments of his life captured on his own digital camera. In addition to his murder, those images uncovered a forbidden romance, one that could also expose his killer.

Despite a troubled and poverty-stricken childhood, Travis Alexander grew up to become a larger-than-life character. Fully embracing his faith as a Mormon and his success as a businessman, he had the world at his feet. He recognized this same drive to succeed in Jodi Arias, an aspiring photographer he met at a business conference. The pair quickly became an item and Jodi made Travis' world her own, even adopting his Mormon beliefs. But in time, the spirituality that connected them would also prove to be an obstacle.

Theirs was a tumultuous relationship - filled with break-ups and other liaisons - complicated further by their faith, which dictates no premarital sex. Eventually giving in to their desires and photographing their many exploits, the young couple was painfully aware that in the eyes of their spiritual community they were living a lie.

But it was a different lie, one that Jodi told about the night Travis was killed, that would eventually expose their secret and put the would-be photographer at the center of a murder investigation.

Was it a fatal attraction? Did Jodi Arias kill Travis Alexander out of jealousy? Or was she an innocent victim who lied out of fear?

Correspondent Maureen Maher reports on 48 HOURS MYSTERY: "Picture Perfect," Saturday, March 7 (10:00-11:00 PM, ET/PT), which will be broadcast with limited commercial breaks on the CBS Television Network. This broadcast is produced by Josh Gelman. Paul Ryan is the senior producer. Al Briganti is the executive editor. Susan Zirinsky is the executive producer.