A 55-year-old worker has been barred from Yellowstone National Park for making threatening comments about a mass shooting, doing so in the immediate aftermath of an actual shooting in the park.

Robert J. Sherman pleaded guilty to two misdemeanor counts of disorderly conduct during a July 23 appearance in U.S. District Court.

The Holladay, Utah, resident received credit for the 14 days he’d already spent in jail and was placed on five years of unsupervised probation, with conditions that include staying out of Yellowstone.

Charging documents say that on July 5 — the day after a park worker attempted to shoot people inside the employee dining room at Canyon Village — Sherman caused something of a scene inside the employee dining room in the Roosevelt area.

After being confronted about taking food from the wrong spot, Sherman reportedly became upset, threw his tray and said, “Maybe we should have a shooting down here as well,” according to his account to law enforcement. Witnesses told it slightly differently, recalling that Sherman said, “The next mass shooting will occur here.”

Federal prosecutors say Sherman made several more threatening comments on July 7, “along the lines that he would be, ‘killing people around here.’”

Park rangers learned of Sherman’s statements on the morning of July 8 and immediately responded to the Roosevelt Lodge area. The area around Sherman’s cabin was evacuated, and rangers armed with long guns ordered his roommates to get out as they detained him, charging documents say. Sherman, who had been working for park concessionaire Xanterra Parks and Resorts, was ultimately taken into custody.

In an affidavit filed in support of his arrest, responding Park Ranger Lili Flowers noted that Sherman’s remarks about a shooting came just 24 hours after another Xanterra employee opened fire at the Canyon area. The July 4 incident resulted in the death of the shooter, 28-year-old Samson Lucas Bariah Fussner, and a serious injury to a ranger.

Unlike Fussner, who was armed with multiple weapons, a search of Sherman’s cabin and vehicle turned up nothing of note. Sherman reportedly told rangers that “if anything I lost my cool.”

Sherman and his court-appointed defense attorney from Bozeman, Montana, almost immediately reached a plea agreement with the U.S. Attorney’s Office for the District of Wyoming: Just three days after his arrest, on July 11, the parties notified presiding Magistrate Judge Stephanie Hambrick that they had struck a deal.

At last week’s hearing in Mammoth Hot Springs, Judge Hambrick ordered Sherman to pay $50 in fees and assessments, but did not impose any fines. While on probation, Sherman will need to steer clear of the park and any other crimes or else he’ll risk additional punishment.