That party took place at a home in Flossmoor on December 21.
The next day, a young woman told police she was sexually assaulted.
Police have not made any arrests but say they have identified several persons of interest.
Woman charged with providing alcohol
Party may have led to alleged sexual assault
FLOSSMOOR, IL Prosecutors have charged 21-year-old Natasha Dobrin with unlawful delivery of alcohol to a minor.
She's reportedly a friend of one of the partygoers.
