Adicus Mitchell, 51, faces from three to six years in prison when he is sentenced April 1 by Criminal Court Judge Lee Coffee. He also is eligible to seek diversion or probation.
Mitchell was scheduled for trial this week, but entered his plea on Tuesday, March 1st.
The incident occurred around 11 a.m. on May 6, 2014, at the MATA bus terminal at 444 N. Main St. where a bus driver notified Mitchell that he had an unruly passenger.
Robert Gray, 69, made obscene remarks to one female passenger and was slow in getting off the bus when it pulled into the terminal.
An audio-video recording showed Mitchell and Gray exchanging words in a confrontation that ended with Mitchell forcefully shoving Gray out the front door. Gray landed face first and lay motionless on the concrete.
Gray was hospitalized in critical condition and two months later was transferred to a long-term care facility where he died on Aug. 3. The medical examiner ruled the cause of death to be complications from blunt force head trauma.
The case is being handled by Asst. Dist. Attys. Alanda Dwyer and Steve Ragland.