At about 8:30 p.m. EDT, the victim was outside the Merritt Properties office building when the suspect got out of a vehicle and approached him.
The suspect displayed a handgun and hit the victim with the gun. The suspect then got into a dark, four-door vehicle, possibly a 2000-style Nissan Maxima, and fled toward Security Boulevard.
The suspect is said to be a black male, 20 to 25 years old, 6 feet tall, and weighing about 200 pounds. He wore a dark gray or black hooded jacket with three dice on the back.
He also wore Adidas Samba black shoes with three white stripes on the side.
Anyone with information about this case should call Baltimore County Police at 410-307-2020 or Metro Crime Stoppers at 1-866-7-LOCKUP (1-866-756-2587).