Three more former Louisiana State Penitentiary at Angola guards were charged Wednesday in the 2014 beating of a handcuffed and shackled Angola inmate and an alleged cover-up of the assault, federal prosecutors announced.

The indictment of the three men by a federal grand jury in Baton Rouge came a day after another ex-Angola guard, 48-year-old Scotty Kennedy, of Beebe, Arkansas, pleaded guilty to federal conspiracy and other charges stemming from the beating and cover-up. He was charged by federal prosecutors last week.

Those indicted Wednesday included former Maj. Daniel Davis, 40, of Loranger, and former Capts. John Sanders, 31, and James Savoy, 38, both of Marksville. The indictment refers to four of the gaurds' subordinates as officers E, F, G and H -- a possible sign that additional charges could be coming.

The three former supervisory correctional officers are accused of beating the inmate and conspiring to cover up their misconduct by falsifying official records, committing perjury and tampering with witnesses and physical evidence.

U.S. Attorney Walt Green said the indictment reinforces that "no one is above the law."

"It is a sad day whenever a member of law enforcement engages in wrongdoing," he said. "In addition to the direct harm caused to a victim, such wrongdoing taints the vast majority of officers who fulfill their mission with honesty and integrity."

Davis, Sanders and Savoy falsely stated that they used reasonable force to get the inmate under control after he got out of his cell and fought with officers, the indictment alleges.

The guards also instructed subordinates to clean up the inmate's blood before internal investigators could document it, falsified official prison reports and records, ordered subordinates to lie to internal affairs investigators, and lied under oath in a federal civil proceeding that arose from the incident, the grand jury alleged.

The indictment came six days after federal prosecutors accused Kennedy in a bill of information of standing by while other correctional officers beat the inmate while he was handcuffed and shackled.

+2 Feds charge Angola correctional officer in alleged beating cover-up A Louisiana State Penitentiary at Angola correctional officer stood by in January 2014 while…

Kennedy also was accused of plotting with those other guards to cover up what prosecutors called an "unjustified assault" by making up a false story, falsifying prison records to corroborate the story, and tampering with witnesses and physical evidence.

Kennedy, who resigned in February 2014, the month after the assault, pleaded guilty as charged Tuesday to depriving the inmate of the right to be free from cruel and unusual punishment, and conspiracy to obstruct justice.

U.S. District Judge John deGravelles did not set a sentencing date.