When I first set out to write a book on the Craigslist Killer, I knew the big question on everyone’s mind was: Why, if Philip Markoff was indeed the Craigslist Killer, would he do such a thing? The Craigslist Killer had attacked three young women – all sex workers – in a 7-day-crime spree, killing one and terrorizing two others. Was this really the work of Philip Markoff? It did not make sense because Markoff seemed to have it all – young, handsome, tall, intelligent, studying at a prestigious college the field of his choice, and engaged to a beautiful young woman who adored him. What was wrong with this picture?Almost immediately, the public persona Markoff created began to crack. Here was a guy who loved to gamble. He made 19 trips to Foxwood’s Casino on Connecticut in 2009 before he was arrested, and he was arrested in April which meant he was going at least once a week. Consider that Foxwood’s is a two-hour drive each way from Boston where Markoff lived. If he only gambled for an hour, he would have spent a minimum of five hours feeding his gambling habit. A once-a-week trip like this made sense for the casual worker but Markoff was going to medical school, and planning a wedding that was only four months away.
Then, a few days after his arrest, Markoff’s image took another hit. A transvestite went public to reveal that he and Markoff had exchanged erotic emails twice during the previous year. What’s more, Markoff corresponded with this transvestite using his real name, image, and a torso shot that police later confirmed to “48 Hours Mystery” was found on his home laptop. And then there was that username. In one set of emails, Markoff called himself “sexaddict5385” and in the second set “sexaddict53885.” Those usernames sent a veteran crime blogger on an Internet search and what he came up with was explosive: Markoff, using the username “sexaddict53885” had been posting profiles of himself on sexually explicit websites since at least May, 2007. The websites included Alt.com, Gayclublist.com, and extremerestraints.com.
The image of Markoff was, in my mind, becoming clearer and clearer. Here was someone clearly interested (even if only as a fantasy) in bisexual and homosexual activities that included bondage and S & M – a very different persona that the one he presented to the public. Looking at the whole picture, I began to see Markoff as a man under severe stress. He was a gambling addict, someone interested in pursuing an alternative lifestyle, going to medical school AND had the pressure of an impending marriage that he probably knew in heart of hearts was a sham. The wedding website he and fiancé Megan McAllister had constructed included a countdown clock, ticking down the second until Markoff was hitched. How’s that for pressure?
None of these factors in and of themselves leads someone to become a murderer but psychiatrists I spoke to for the book said that these disparate personas could easily cause a “fractured identity” that could lead to violence. I believe it did and I outline the various theories together with exclusive interviews with the two surviving victims of the Craigslist Killer in my book :”Seven Days of Rage” and the “48 Hours Mystery” I produced on the case, which ran September 19th at 10 p.m. eastern time on CBS.




















