LINCOLN, Neb. (AP) — Nebraska’s corrections director says the execution of convicted double-murderer Carey Dean Moore was similar to other executions he has witnessed, and Moore never appeared to be in pain.

Director Scott Frakes made the comments to a grand jury in sworn testimony released Thursday, nearly three weeks after the death investigation ended.

Frakes says Moore breathed heavily in August as the first of four lethal injection drugs was administered. He says Moore began to snore, but made no other sounds. He says everything he saw was consistent with his past experiences.

The Lancaster County grand jury concluded that Moore died of respiratory failure due to toxicity from multiple drugs.

The 60-year-old Moore was put to death for the 1979 murders of Omaha cab drivers Maynard Helgeland and Reuel Van Ness Jr.