Craigslist chief executive Jim Buckmaster told a CNN cable TV news program this morning that the company feels terribly that an accused killer in Boston allegedly used the online service to target his victims.

"We feel terribly, and it's quite sad that anyone would lose their life," Buckmaster told CNN. "And we're horrified that use of Craigslist could in any way be connected with a violent crime of this nature. It just causes us to redouble our efforts to try to get across to users to take a few common sense precautions that eliminate most of the risks.

A story in this morning's Globe noted that Craigslist, an online bulletin board where many classified ads are posted, has its critics as the service pursues a dual role of promoting sex trade advertising and assisting police helps solve crimes linked to erotic ads on the site.

A second Globe story noted that Boston University medical student Philip Markoff (right) was arraigned yesterday on charges of murder, kidnapping, and armed robbery.