Police release sketch of attacker

February 29, 2012 10:00:00 PM PST
Chicago police hope a sketch leads to the arrest of the man who sexually assaulted a 15-year-old girl at gunpoint.

The attack happened yesterday morning as the girl was walking near 95th and Prairie.

Police released this sketch in a community alert issued today.

The alert says the attacker is about 17 years old.

Anyone with information is asked to call police.