• Allison Howlett, 36, who police identified as transgender, was arrested June 27 after Henderson, Nev., police responded to a 911 call from the suspect’s spouse reporting a domestic dispute, a stolen vehicle loaded with firearms, and alleged threats of both “suicide by cop” and a mass shooting. Officers located Howlett at Sunset Station casino, where police said the suspect was sitting on a handgun with a fully automatic, suppressed MP5-style machine gun within reach.
  • According to investigators, the incident began after Julie Howlett, the suspect’s spouse, reported discovering unauthorized charges on her credit card. She told police Allison confronted her with a handgun, attempted to fire it during a struggle, then fled in her vehicle containing 22 firearms that Julie said were part of her inventory as a licensed gun dealer. Authorities later recovered 30 additional firearms from the Henderson residence, including automatic weapons, grenade launchers, suppressors and thousands of rounds of ammunition.
  • Police said the investigation expanded into a counterterrorism case after investigators uncovered evidence that Howlett had allegedly made threats dating back to January 2024 about carrying out a mass shooting in Las Vegas. Howlett faces 35 criminal counts and denied planning a mass shooting during a post-arrest interview. A Clark County judge set bail at $500,000.
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