An off-duty correction officer was shot to death in her car, in what investigators called a planned execution.  The hunt is now on for her suspected killer.

25-year old Alastasia Bryan was shot Sunday night outside a home in the Flatlands neighborhood of Brooklyn.  She was visiting family and friends and was on her way to a shift at Rikers Island, when around 9:15 p.m, five shots rang out.  A single bullet struck Bryan in the head, killing her instantly as the shooter sped away in a dark-colored Honda.  In addition to her head, officers said they found gunshot wounds to her torso.

Her death appeared to be planned and the killer was believed to have been waiting at the intersection before she arrived.  It's unclear what the motive is for the shooting.  No arrests have been made.  Investigators are reviewing security footage as cops continue to canvass the area for clues.

The Correction Officers' Benevolent Association issued a statement saying the correction family was "shocked and grieving the horrific murder" of Bryan.

The shooting death of Bryan happened one week to the day after another New York City correction officer and his wife were shot during an apparent home invasion in Queens.  Police are looking for suspects in that case as well.  The husband and wife are expected to survive.

Source: foxnews.com