Matthew De Leon, 23, faces one count each of aggravated battery causing great bodily harm, aggravated battery in a public place and aggravated battery of a peace officer, all felonies, according to Chicago Police.
About 2:15 a.m., the security guard, a 46-year-old woman, walked up to the man, who had apparently vomited and was lying on the sidewalk outside the building at Franklin and Ontario, police said.
She asked the man to leave as three other people, apparently friends of the suspect, came out of the building,
surveillance video shows.
The man, identified as De Leon, then threw a water bottle at the woman.
and punched her in the face. The security guard refused medical attention at the scene, authorities said.
The three friends did not try to stop the attack, but instead walked away with the suspect, the video shows.
De Leon, who lives in the Portage Park neighborhood, was arrested Monday at the Wentworth District station, police said. He was scheduled for a Wednesday bond hearing.