The deputy, Joshua Sather, said that shortly before the inmate's beating his supervisor said, "We're gonna go in and teach this guy a lesson," according to the records. The attack, Sather said, was then covered up.
Sather's case was pieced together by The Times from department sources as well as district attorney's documents in which Sather's uncle revealed his nephew's allegations to investigators.
Sheriff's officials launched an investigation and determined that an uncooperative inmate had been subdued by force, but concluded that no misconduct had occurred. They also asked the district attorney to review the uncle's alleged threat, but prosecutors declined to file charges.
Sather's allegation is among several first-hand accounts of unwarranted deputy violence against inmates in the nation's largest jail system. Last week, two chaplains and a movie producer released sworn statements that they witnessed deputies abusing inmates. But Sather's allegations are unusual because they come from within the department's own ranks, from the point of view of a deputy.
The FBI is now investigating several allegations of deputy abuse and misconduct in the jails.
Sather, a Long Beach native, had followed in his uncle's footsteps, earning a spot in the Sheriff's Academy and becoming his class' sole "Honor Recruit" for his leadership, athleticism and other abilities. As with virtually all rookies, his first assignment was jail duty.
The jails are a place where inexperienced deputies learn how to handle potentially violent and manipulative criminals, while under constant supervision. For Sather, the experience quickly became disturbing.
Sather's beating allegation and the drama that followed his decision to resign are documented in a seven-page district attorney's memo reviewed by The Times. The following account is based on that report:
On March 22, 2010, Sather was working on the sixth floor mental health ward of the Twin Towers Correctional Facility in downtown L.A. At some point during his shift, he, his supervisor and other deputies used force on the mentally ill inmate.
Soon afterward, Sather, a muscled, tattooed 23-year-old, called his uncle, Steven Sather, crying and distraught, records show. The young man apparently told his uncle that the beating was unwarranted and then had been covered up. The elder Sather told his nephew to do the "right thing" and be honest about what occurred.
The next day, worried that the rookie might be planning to quit, Steven Sather drove to Twin Towers intent on saving his nephew's career. The uncle and his partner parked behind the jail and left their guns in the trunk. In the watch commander's office, Steven Sather asked to see his nephew. But he was told the young man had resigned, citing "family issues" as his only reason.
Outside, Steven Sather and his partner had a colleague radio for Joshua Sather's supervisor, Bryan Brunsting.
When Brunsting saw the two gang detectives waiting for him, he asked what was going on.
"Do you know who I am?" Steven Sather asked.
Brunsting peered at the name embroidered on the detective's green-and-gold sheriff's raid jacket. He realized he was talking to his trainee's uncle. The rookie had failed to show up for a morning briefing, and Brunsting had just learned he'd quit.
Steven Sather led Brunsting away for a private conversation. Deputies nearby recalled that the exchange was heated.
"If you don't stop [messing] with my nephew, I'm gonna kick your ass. Stop [messing] with my nephew," Steven Sather shouted. "You know what this is about, getting him into situations that he shouldn't have got into. He's a … honor recruit and you put him into situations that you shouldn't have put him in."
Brunsting said afterward that the detective threatened him, saying, "If my nephew doesn't decide to come back to the department, I'm gonna find you and put a bullet in your head."
At some point Steven Sather's partner walked over, saying, "That's enough, Steve."
The detectives returned to their truck and headed for the younger Sather's home, apparently in a last-ditch effort to change his mind.
They were unsuccessful. Joshua Sather's resignation became official four days later. He eventually moved to Colorado, where he works in the oil fields.
Months after the resignation, Brunsting reported to his superiors that Steven Sather had threatened his life. Sheriff's investigators interviewed the deputies involved and those who may have witnessed the heated exchange. Prosecutors ultimately declined to press charges.
When Steven Sather was interviewed, he accused Brunsting of brutalizing mentally disabled inmates, then having the nerve to come after him. The "whole ... thing" was over the fact Brunsting was making his nephew beat up "dings," Sather told investigators.
"Honestly … I can't believe this is even happening.... I can't believe this guy," he told investigators. "First of all [he] gets away with … this stuff. And now he's … coming after me criminally?"
Steven Sather did not respond to requests from The Times for an interview. Brunsting declined to comment. Sheriff's spokesman Steve Whitmore said that an internal investigation was conducted into the incident that preceded Sather's resignation and that "the allegations proved to be unfounded."
The investigation apparently broke down, at least in part, because the inmate told a different story than Joshua Sather, before quickly becoming uncooperative, an official said. The other deputies involved also disputed the rookie's account. And a nurse's notes listed no detectable injuries on the inmate, only that he'd been pepper sprayed and had redness on his face, the official added.
When Joshua Sather chose to resign, he wasn't facing any potential criminal or administrative action, Whitmore said.
Joshua Sather declined repeatedly to be interviewed by The Times. "I appreciate your interest, but I will have no comment," he said in one text message.
Then by phone, the onetime honor recruit stood firm, explaining his reluctance this way:
"A wise man cries more often than he speaks," he said. Then he hung up.