Charges were filed against a man who tried to sexually assault a 54-year-old Chicago woman earlier in the day while she slept in her Gold Coast home.
Deandre Minor, 28, faces one count of attempted criminal sexual assault with bodily harm, robbery and home invasion/sex offense, according to police.
Authorities said the woman was woken up by a man on top of her at about 3:20 a.m.
The woman's son, who was also in the home on the 1200 block of North Stone Street, heard the struggle and went to her rescue, police said.
The son chased the attacker, who police said was partially clothed, out of the apartment. The man was arrested as he was exiting the building.
Neighbors suspect the man got into the building through a door that wasn't locked properly and went floor by floor of the nine-story building looking for a victim.
A doorman is on duty each evening but leaves at 10 p.m., residents said.
But that's changing.
"The building is going above and beyond now. There's a 24-hour doorman and new locks, a security system and the whole thing," said a man who wished to be identified only as Doug.
The incident is the latest in a recent string of violent crimes in the normally quiet, affluent neighborhood.