"This trailer is not about correction officers. It's not about staff. This trailer is about inmates and its about visitors. It's about the 370 inmates who brought drugs and weapons and K2 onto Rikers Island," said Elias Husamudeen, president of the Correction Officers Benevolent Association.

Days after Mayor de Blasio touted an "astonishing" turnaround at several units in Rikers Island, two inmates unleashed simultaneous attacks against correction officers in an apparent attempt to get transferred out of one of the specialized facilities, sources say.

Around the same time, an inmate was nearly killed after he was slashed in the neck in a different building at the troubled jail complex, capping a bloody Friday.