According to an Erie County sheriff's deputy, two inmates, Michael Milner, 26, and Bryce Stokes, 19, were arguing in the Erie County Jail's rec area on the basketball court.
Stokes broke Milner's nose and will likely face charges after it is presented to the grand jury.
Milner is in jail after pleading guilty to beating his girlfriend's son to death in 2012. He will be sentenced Aug. 7.
Stokes is locked up on rape charges.
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