Overview
- Arizona resident Donald Day Jr. pleaded guilty to unlawfully possessing firearms and ammunition as a convicted felon, with sentencing set for January 8, 2026, in Phoenix.
- Under the agreement approved in Arizona federal court, prosecutors dismissed two threat counts and an unregistered-firearm charge.
- The deal stipulates any prison term will be at the low end of the federal guideline range, though the statute allows up to 15 years and a $250,000 fine.
- Court filings say Day used the online alias "Geronimo's Bones" to communicate with Gareth and Stacey Train around the 2022 Wieambilla ambush and posted messages praising the killings.
- Investigators reported nine high-powered firearms, hundreds of rounds and a sniper hide at Day's Heber, Arizona property, which he admitted storing mainly in a "gun room," as Queensland officials and victims' families criticized the outcome.