Police say on June 9 the 20-year-old was returning to her home around 9 p.m. at the Providence Green Apartments, which are on Greenfield Road near I-696. When she got there, a man was inside.
Police say she was attacked and sexually assaulted.
The suspect is described as a man in his 40s, being 6 feet tall, having a medium build and having short black hair with black-and-gray stubble. He also has a scar over his eyebrow.
Anyone with information is asked to call the Oak Park Police at 248-691-7447.
You can also tell Crime Stoppers at 1-800-SPEAK-UP, where you will remain anonymous. Crime Stoppers is also offering a $1,000 reward for information that leads authorities to the suspect.