Police said 34-year-old Jorge Alicea was found shot in the back lot of the school at 300 Wethersfield Ave. around 12:30 p.m. on July 11. School was not in session at the time.
Police said Friday they have charged 27-year-old Luis Rivera with conspiracy to commit murder.
Both are being held on a $1 million bond. Cruz is due in court on Aug. 8 and Osorio is due in court on Aug. 26.
Police said Alicea did not have a weapon on him and he was riding his bike at the time of the killing.