Chicago police say they have a suspect in custody for helping a mob of people beat and stab a man on Chicago’s North Side this week. Police say 24-year-old Darren Hayes from Hammond, Indiana turned himself in to authorities and is cooperating with the ongoing investigation. A resident video taped the mob beating and posted it on the Internet.

Sergeant Debra DeYoung said the video shows other witnesses also videotaped the incident and she hopes they come forward with their accounts.

“It is part of the investigation,” she said. “It’s a different angle or whatever and it might give us - it might shed some further light on the investigation. We’d really appreciate being able to see that.”

The victim of the stabbing was released from the hospital earlier this week. The stabbing incident led to a raucous community meeting this week attended by hundreds of people about crime on the North Side.