A suspect, Tre'vonte Adcock, 18, is being held in Erie County Jail.
Police believe Adcock and Rhodes, who family members say are related, got into some kind of dispute or horseplay that got out of hand, said Det. Gary Wichman, the lead investigator in the case.
It was an incident "that escalated into something horrible," Wichman said. "I don't think it was a planned murder. There's nothing to substantiate that."
Read more about the case in today's Register or e-paper.