Prosecutor Jason Petri told the court the teenage defendant, Raheem Dyer, got into an argument with a correction officer after he was accused of stealing from the jail commissary.
A Rikers Island correction officer was convicted Friday of smuggling drugs and other items into the jail.
County lawmakers voted unanimously to arm some 200 officers with Glock 9 mm pistols.
A group of parents is demanding charges and indictments be brought against Rikers Island correction officers who allegedly beat inmates.
Two New York City correction officers were charged Tuesday with trafficking cocaine and smuggling oxycodone and contraband into the Rikers Island jail complex.
Investigators on Monday searched about 75 locations at Rikers Island Monday for drugs, contraband and weapons as part of a probe into violence and other criminality.
Four New York City correction officers and several inmates have been injured during a brawl at Rikers Island Friday night.
Two New York City correctional officers were arrested in separate incidents this weekend.
A Riker’s Island correction officer had his thumb bitten off by a inmate and two other officers suffered injuries after a violent brawl apparently broke out Thursday night in the prison, officials said Friday.
New York City Correction Department spokesman Steven Morello said the injuries were non-life threatening. He did not say what caused the fights.