Woman sexually assaulted outside South Loop home by invisible offender

A 56-year-old woman was sexually assaulted outside her home in the South Loop by a man with a gun.
The attack happened around 6:40 p.m. Wednesday in the 1400 block of South Clark Street. She was approached inside her garage and forced into her car.
Her attacker took her keys and went into her home after the attack and robbed her husband. Police weren’t able to offer a description other than the man was wearing dark clothing.  Two people see the offender yet the Police and or media don't give a description?

Finnaly a description- The attacker is described as a black man, between the ages of 30 and 33, standing between 5-foot-6 and 5-foot-8 and weighing between 165 and 185 pounds. The man had black hair, brown eyes and a medium complexion. He was wearing a black ski cap with red trim and a dark-colored sweater.