SEVEN DAYS OF RAGE: THE CRAIGSLIST KILLER DAYS AFTER OF ACCUSED CRAIGSLIST KILLER PHILIP MARKOFF'S SUICIDE, "48 HOURS MYSTERY" EXPOSES HIS DARK SECRETS FRIDAY, AUG. 20, 2010 (8:00-9:00 PM, ET/PT) ON THE CBS TELEVISION NETWORK

On Sunday, Aug. 15, one day after what would have been his one-year wedding anniversary, accused Craigslist killer Philip Markoff took his own life, marking the end of a story that captivated a nation. 48 HOURS MYSTERY examines the shocking final chapter of this tragic case in a program to be broadcast on Friday, Aug. 20, 2010 (8:00-9:00 PM ET/PT) on the CBS Television Network.

A former Boston University medical student, Markoff was awaiting trial for the murder of Manhattan model and masseuse Julissa Brisman whose body was discovered in the hallway of the a Boston hotel in April 2009. Brisman had been at the hotel to meet a client she'd connected with on Craigslist. The murder investigation would quickly reveal that the same man was linked to two other assaults across the northeast, all involving women whom he contacted through the website's infamous erotic services classifieds. Within days, Markoff, who had been engaged to be married, saw his life unravel as news emerged that he had posted profiles of himself on several adult alternative-lifestyle websites expressing his interest in bondage, sadomasochism, homosexuality and his desire to be dominated.

In an exclusive interview with 48 HOURS MYSTERY, Boston Globe reporter Maria Cramer says Markoff, who had asphyxiated himself and cut a major artery, "took great pains to make sure he wouldn't be found alive...he put a significant amount of planning into it." Cramer, who co-wrote the book Seven Days of Rage," with 48 HOURS MYSTERY producer Paul LaRosa, also broke news with the revelation that Markoff had written his former fiance's name Megan and the word pocket - a reference to the pet name the two had for each other - in his own blood on his cell wall.

As he took his own life, Markoff also took away the chance for Julissa Brisman's family to see justice served. "Maybe they would have had some sort understanding of why their daughter had to die...that's been taken away from them," says Cramer.

"Seven Days of Rage: The Deadly Crime Spree of The Craigslist Killer," written by producer Paul LaRosa and Boston Globe reporter Maria Cramer (Pocket Books)* available in stores now.

*Pocket Books is a division of Simon & Schuster, which is owned by CBS.