460 weatherby
Here's a link from Reuters on the guns used
Last updated: 29 Dec 2000 16:08 GMT (Reuters)
Reuters PhotoBOSTON (Reuters) - One of the four guns found at the suburban Boston Internet consulting firm where seven employees were killed could not be traced and may be a Spanish relic, law enforcement officials said Friday.
A spokesman for the U.S. Bureau of Alcohol, Tobacco and Firearms, John D'Angelo, said the agency had completed its inquiry into the traces of three of the four weapons found at the site of this week's deadly shootings.
"They were unable to trace one gun because of its age," D'Angelo told Reuters.
D'Angelo declined to name the weapon that went untraced, but police in Massachusetts said the handgun found in the pants pocket of accused killer Michael McDermott may be an old Spanish weapon. The weapons were found at the offices of Edgewater Technology Inc. D'Angelo said the results, which were not made public, were turned over to Massachusetts investigators. Prosecutors say McDermott gunned down four female and three male co-workers on Tuesday inside the company's Wakefield, Mass., headquarters. The victims died from multiple gunshot wounds, including blasts to their legs and head.
After the shooting attack, police found McDermott, a 42-year-old software tester at Edgewater, sitting in the reception area with a 12-gauge Winchester pump shotgun on one side and military-style assault rifle on the other.
In McDermott's right front pants pocket, police said they found a "fully loaded handgun with a full magazine." A black tote bag at his side also held several hundred rounds of ammunition.
Prosecutor Tom O'Reilly said the shotgun and assault rifle were used during a killing rampage that lasted about seven minutes. He said the handgun was not used.
Afterward, police found a .460-caliber Weatherby Magnum in an upright locker near McDermott's desk. The rifle is considered the world's most powerful shoulder-fired cartridge, used by professional hunters to kill big game in Africa.