Prisoners fatally stab Jessup guard

A group of inmates, possibly having jammed the locks on their cell doors, allegedly stabbed a corrections officer to death late Tuesday night at a Jessup prison although it was on lockdown, officials said.

Officer David McGuinn, 42, was counting down inmates by himself in the west wing of the Maryland House of Correction at about 10 p.m. when he was jumped by at least three inmates and stabbed in the neck and torso, officials said.