FBI nabs Florida man with alleged plan to livestream neo-Nazi terror attack; graphic Signal messages recovered
Neo-Nazi propaganda allegedly found at the home and a driver's license photo of Lucas Temple.
A Florida man has been arrested following an FBI investigation that tied him to several extremist group chats on the encrypted messaging app Signal, where agents say he used multiple aliases to share violent propaganda, bomb-making instructions, and other disturbing content.
Lucas Alexander Temple, 20, now faces federal charges for distributing information on constructing explosives and for possessing an unregistered short-barreled shotgun, according to federal court filings.
Investigators say Temple posted a hand-drawn diagram of a homemade detonator, shared links to online videos showing how to synthesize dynamite and build blasting caps, and uploaded a 122-page extremist manual promoting White supremacist ideology. According to the complaint, the group chats also contained highly graphic conversations encouraging acts of extreme violence, including harm toward minorities.
Temple’s online personas were ultimately connected to his real identity through personal details he shared in the chats—such as his age, his job at a grocery store, and references to a family museum visit—which investigators confirmed using state records and security footage.
During a search of his home on Thursday, FBI agents recovered neo-Nazi materials, a book connected to the Columbine High School shooters, and a Springfield Model 67 Series E shotgun with a barrel shorter than 18 inches. The sawed-off barrel was found stored separately. ATF records show Temple was not registered to possess the weapon.
Agents also discovered a handwritten note outlining plans for a potential violent attack, including references to livestreaming, placing flags on a vehicle, and setting motion-activated devices near doorways. Temple was taken into custody after the search.
At his initial court appearance, Magistrate Judge Amanda Arnold Sansone ordered that he remain detained pending trial, stating that he poses a significant danger to the public.
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