Dolly Parton’s nephew, who previously served as her head of security before his position was “terminated” earlier this month, spoke openly about violence and weaponry in the weeks before he was dismissed, according to court filings.

Bryan Seaver — against whom Parton’s estate was granted a temporary restraining order on Sept. 22 — launched a “campaign of threats, intimidation and coercion” that began in the weeks before Parton’s Aug. 25 death, when he allegedly became aware that her death “could be [imminent],” according to a memorandum filed in support of the restraining order peтιтion.

Seaver, who at Parton’s request was the one who announced her death, has not responded to PEOPLE’s requests for comment.

“Mr. Seaver began invoking his self-proclaimed military-contractor experience, access to weapons, and capacity for violence to extort [Parton’s estate] into giving into his demands for money,” the filing reads.

Seaver, who served as his aunt’s head of security for over 20 years, allegedly “boast[ed]” about arms dealing and warfare, calling himself “literally an international arms dealer and mercenary,” and also announced plans to exact “long-term vengeance.”

“I am [seeking] vengeance for my people for the next 50 years. I have no debt. I only own swords and guns,” he allegedly told Parton’s longtime manager Danny Nozell. “All I have is animosity and memory. But I’m going to spend the next times I have on earth ratf—ing anyone that has ever betrayed my family… All I do is warfare… Everyone needs to be worried about what I might do.”

He also allegedly described himself as “a killer” in a Sept. 3 email to Parton’s entertainment attorney.

“I sold 27 million $ worth of ammunition and arms to the Haitian police on [the] day Dolly died,” he allegedly wrote. “Entertainment is not my game.”