Reading police say 25-year-old Irich Colon turned herself in Monday in the Jan. 11 beating, which was caught on surveillance video. Authorities are seeking a fourth suspect, identified as 23-year-old Floyd Patterson of Reading.
The laundromat owner told police the homeless man was permitted inside on bitterly cold nights. The man was sleeping when four people from a nearby bar came in and beat him.
Surveillance video shows the group returning four more times, each time kicking and punching the motionless man as he lay on the floor. He was hospitalized for several days.
The day after the assault, police arrested 26-year-old Keith Allison and 21-year-old Ana Ferrer-Reyes of Reading.