(CNN) -- Five teens who admitted to bullying a 13-year-old boy who was attacked while walking home from school in a Philadelphia suburb must abide by curfews, perform community service and have electronic monitoring, prosecutors said Thursday.
A sixth youth made an admission Thursday to misdemeanor simple assault, reckless endangerment and false imprisonment, according to spokeswoman Erica Parham of the Delaware County, Pennsylvania, district attorney's office.
A disposition hearing was set for March 3. That youth will remain in custody until then.
Charges against a seventh boy were dropped last week because the victim said he was not involved, Parham told CNN.
Nadin Khoury was attacked while walking home from school on January 11.
A video taken on the cell phone of one of the suspects shows the boy being kicked, dragged through the snow and stuffed into a tree, then hung from his jacket on a tall wrought-iron fence. On the video, the boy can be heard screaming as his attackers laugh
The five teens who were given sentences were released from custody Thursday, Parham said. They admitted to misdemeanor simple assault and related charges to avoid felonies.
Six of the youths were arrested at an alternative program at Upper Darby High School, Upper Darby police Lt. Thomas Sharp told CNN earlier this month. Khoury and all seven suspects, whose ages range from 13 to 17, attended the alternative program, called the Opportunity Center.
Khoury's mother, Rebecca, recently told HLN, "I could not even believe what I was seeing on the video."
"He did not deserve this," she said. "This is not right. This is wrong."
"It was seven against one," said Michael Chitwood, police superintendent for Upper Darby Township. "It was a wolf pack."
Police confiscated the video before it was posted to any networking sites, authorities said.
The beating reportedly occurred at an apartment complex, and police said at least one person walked by and did nothing, despite the boy's calls for help. "No one called 911," police Capt. George Rhoades told CNN affiliate WPVI.
The Khoury family agreed to the dispositions, Parham said Thursday.
Upper Darby is just west of Philadelphia.
CNN's Sarah Hoye, Ashley Hayes and Phil Gast contributed to this report.