A man was arrested Monday after Chicago police said he pushed a stranger onto CTA Blue Line tracks in early August.

Chad Estep, 34, was charged with one count each of attempted murder and aggravated battery in a public place - both felonies - as well as one misdemeanor count of trespassing on the CTA without paying, according to police.

Estep was taken into custody at his home in the 1700 block of West Ellen Street in the city's Wicker Park neighborhood at around 5:10 p.m. after authorities said he was identified as the offender who shoved another man off the platform at a CTA Blue Line stop in Chicago's Loop.

The incident occurred at the Washington Blue Line station in the 0-100 block of North Dearborn Street on Aug. 1, according to police.

Between 11:30 a.m. and noon, police said a 46-year-old man was waiting to board a train when Estep approached him from behind and pushed him, causing him to fall off the platform and onto the tracks.

Estep then "menaced the victim and would not allow him to climb back onto the platform, until bystanders intervened and assisted the victim," according to a community alert issued by Chicago police on Sept. 9.

CPD spokesman Anthony Guglielmi told the Chicago Tribune that there is "no information that they knew each other prior."

In surveillance video provided by police, Estep also appeared to have jumped over a turnstile at the station.

He was expected to appear in bond court Tuesday afternoon.