Police Employee Shoots Brother In The Head.... WTF

A man has life-threatening injuries after his sister shot him in the head, police say.
The shooting happened in the area of 239 Wood Ave. Police commissioner William B. Evans says the suspect's name is Yvonne Lewis, 36. She is considered to be armed and dangerous.

Police believe Lewis is driving a red Nissan Pathfinder with a Massachusetts license plate that reads ONTYME. The car was seen in the area of the shooting.
Lewis used to work for Boston police, but she was not an officer.
The man, who is in his 40s, was taken to Brigham and Women's Hospital.
Police ask anyone with information to call 1-800-494-TIPS