One of the attackers recorded the assault on a cell phone.
The juveniles, charged with felonies of kidnapping and aggravated assault, could be incarcerated until they are 21.
The family of the youngest suspect, 14-years-old, who was arrested yesterday has already hired a lawyer.
"I've seen as much video as everybody else and all I see is blurs, so I can't say, what of anything, my client may have done, if he was an active participant or if he was merely an observer," lawyer Geoffrey Seay said.
The adult cousin of a 17-year-old accused in the beating shared his thoughts.
"He's a great kid?[he got into] the wrong crowd, that's all," the cousin said.
The aunt of another suspect spoke out about Upper Darby Police Superintendent Michael Chitwood.
"Mr. Chitwood does have a rather bulldoggish approach, however, we'll wait and see what happens," the aunt said.
All 7 defendants remain in Delaware County's Juvenile Detention Center in Lima. They'll be back in court on February 10th after a series of psychological evaluations and what are called risk assessments.