Our coverage of boston marathon bombing

In Tsarnaev Trial, Prosecutors Turn Hostile Toward Own Witness

Prosecutors in the trial of accused Boston Marathon bomber Dzhokhar Tsarnaev tried to discredit their own witness Wednesday, when it became apparent her findings did not support the government’s charges that the suspect murdered Officer Sean Collier.

Jennifer Montgomery, a forensic DNA analyst from the Massachusetts State Police Crime Laboratory, told the court she found none of Collier’s blood on Tsarnaev’s sweatshirt, despite swabbing bloodstains from the abdomen, cuffs, sleeves, elbow region, and back of the garment.

Montgomery says she tested the sweatshirt against Collier’s DNA: “He could not have been View article …

Why Did One Boston-Area Cop Let Tsarnaev Escape?

Jurors in the trial of alleged Boston Marathon bomber Dzhokhar Tsarnaev heard dramatic testimony from officers involved in the Watertown shootout Monday. However, they did not hear from the officer who came within a few feet of a fleeing Tsarnaev, then the most wanted man in the country.

Watertown police officer John St. Onge met Tsarnaev “head on” at the corner of Spruce and Lincoln Streets, at a point where the road was too narrow for both cars to pass. That forced the injured Tsarnaev to exit the Mercedes View article …