Medical Student To Be Arraigned in Craiglist Slaying

(CNN) -- A medical student will be arraigned Tuesday on a murder charge in Boston Municipal Court in connection with the death of a woman who may have been contacted through a Craigslist ad, police said.

Philip Markoff, 22, who has no criminal record, is charged with murder, as well as armed robbery and kidnapping of another victim, Boston Police Commissioner Ed Davis said Monday evening.

Markoff is a second-year student at Boston University School of Medicine, according to BU.

Markoff, who was under police surveillance, was arrested earlier Monday afternoon after a traffic stop south of the city, he said.

Markoff is suspected in the death of New York City resident Julissa Brisman, 26, who was found unconscious with multiple gunshot wounds at Boston's Copley Marriott Hotel on April 14. She was transferred to Boston Medical Center, where she died from her injuries shortly afterward.

Police said that Brisman, a model, offered massages via Craigslist, a popular online classified ads service.

The confrontation between Brisman and her killer seems to have begun as an attempted robbery, police said. "It appears that there was a struggle between the victim and the suspect in the threshold of the hotel room immediately prior to the shooting," the Boston Police Department said in a statement posted on its Web site.

Surveillance videos from the hotel where Brisman was murdered showed a tall, clean-cut young blonde man in a black windbreaker leaving the property, said the Boston Police Department, which asked for the public's help in identifying the man.

Police did not release a photo of Markoff on Monday.

Four days before Brisman's killing, Markoff allegedly robbed a 29-year-old woman at gunpoint at a Westin Hotel in Boston, Suffolk County District Attorney Dan Conley.

A police spokesman would not disclose the details of her Craigslist ad but said she and Brisman were "involved in similar professions."

"This is a compelling case with a myriad of evidence -- with computer evidence being a part of it," Conley said, adding that additional search warrants would be executed this week.

Davis and Conley warned there may be other victims that come forward in the case.

"We would like to make one final pitch to those out there who may have been a victim of robbery at the hands of Philip Markoff, especially those who may have used Craigslist in the matter in which the victim used Craigslist," he said.

Authorities received more than 150 leads in the case, which Davis credited to the popularity of the Web site.

"The public came forth, they were fascinated by this crime," he said, adding, "I wish we had this level of cooperation in every homicide that occurred."

Davis said Boston investigators were working with police in Warwick, Rhode Island, in what could be a related case.

On April 16 at a Holiday Inn Express in Warwick, a man tied up and demanded money from a 26-year-old dancer who had posted a Craigslist advertisement, Warwick Police Chief Col. Stephen McCartney said.

The robbery was interrupted when the woman's husband entered the room. After pointing his gun at the husband, the suspect fled, McCartney said.

He said no conclusions could be made yet, but allowed that the incident "may be related to similar crimes occurring in the Boston area." Watch police say assailant is perusing Craigslist ads.

Craigslist CEO Jim Buckmaster told CNN the company was "horrified and deeply saddened that our community services have been associated in any way whatsoever with a crime of violence." He promised that Craigslist would evaluate the incident to see if additional measures could be introduced to further protect users.

On Thursday, April 23, there were reports of disturbing new evidence in the way of physical evidence. Items that could change the case against Phillip Markoff completely, making him ven less of a straight arrow in the eyes of authorities and, perhaps, a jury.

Evidence, that if legitimate, suggests that Markoff, who's being held without bail in the killing of one Craigslist masseuse and the robbery of another, wasn't doing it for the money or out of rage but something else. Something more sinister.

Inside the apartment he shared with his fiancee, Markoff may've kept women's underwear hidden in a medical book titled "Gray's Anatomy of the Human Body", souvenirs from his alleged victims.

Two Boston newspapers and ABC News reports that information comes from enforcement sources. The papers' sources called the garments "mementos" but did not say from alleged victims they were taken. When asked, neither Boston Police or the the District Attorney would confirm or deny the report.

Markoff plans to plead not guilty.