-- Police shot and killed a corrections officer last night. Marquis Barker, 38, an officer at Nashua Street Jail, was gunned down after stealing a police cruiser and leading officers on a chase through Dorchester and Mattapan.

Police responding to calls found Barker out of control outside his Dorchester home, wielding what appeared to be a handgun. Barker begged police to shoot and kill him before escaping in the police cruiser. After crashing the cruiser in the parking lot of a Mattapan Walgreens, Baker threatened the police with his handgun and was fatally shot.

Barker's weapon was a pellet gun designed to look like a real one.

-- Call her "Patient Feelgood." Jonna Marks, 39, of Quincy was arrested for dealing heroin and marijuana from her hospital bed.

-- Jeffrey McGee, 36, of Chelmsford will be arraigned on first-degree murder charges tomorrow after allegedly killing his estranged wife Christine McGee with a single cut to the jugular vein. In a chilling twist, police learned of the crime after McGee's three year old son, who allegedly witnessed the murder, was hospitalized following an unrelated car accident.

All charges alleged until proven under law.