A current and former Rikers Island correction officer were arrested in an inmate’s 2012 beating death and a third guard has already pleaded guilty after a federal investigation revealed the guards in the nation’s second-largest jail system conspired to lie about what happened, authorities announced Wednesday.

Southern District U.S. Attorney Preet Bharara announced the arrests of former guard Brian Coll and current guard Byron Taylor in Ronald Spear’s death following a federal investigation that began when state authorities decided not to bring charges (See Complaint).