Julian Brown Missing: Atlanta Inventor's Chilling 'I'm Under Attack' Post Sparks Fears
The lack of official updates has amplified public concern, with conspiracy theories circulating online about corporate or governmental interference.

Julian Brown, a 21-year-old inventor from metro Atlanta, has been missing since 3 July 2025, after posting a disturbing video claiming, 'I'm certainly under attack.'
Known for his viral Plastoline invention, which converts plastic waste into gasoline, diesel, and jet fuel, Brown's disappearance has sparked widespread concern.
Social media posts suggest he feared for his safety, with reports of black helicopters circling his home, prompting speculation about foul play linked to his groundbreaking work.
The Rise of a Young Innovator
Julian Brown, under the handle @naturejab_, gained fame for developing Plastoline, a machine that transforms plastic waste into fuel, addressing plastic waste pollution.
His Instagram videos showcasing the invention amassed 1.3 million followers and 16 million likes on TikTok. 'Plastidiesel, Diesel I made from Plastic Waste,' posted by him from his handle @Naturejab on X, drew public admiration from many as he received cheers for his innovation.
Brown's GoFundMe, launched to raise £760,000 ($1 million) for a warehouse and full-scale prototype, has only collected £5,320 ($7,139), per Yahoo.
Plastidiesel, Diesel I made from Plastic Waste. pic.twitter.com/llwbA15IBN
— Julian Brown (@Naturejab) May 27, 2025
His innovation, developed after years of experimentation, promised to revolutionise waste management and sustainable energy.
However, Brown's final posts hinted at distress, including claims of being stalked and a video of a helicopter circling a remote area with no flight logs, fueling fears his invention made him a target.
Disturbing Final Posts and Disappearance
Brown's last social media activity on 3 July 2025 included a video stating, 'I'm certainly under attack,' and mentions of black helicopters circling his home at night, according to Hindustan Times.
X posts from @Natorrie32 note, 'He warned us that they were going to try to kill him. They? the government.'
Another user, @GregBetti, wrote, 'He filmed a helicopter circling him in the middle of nowhere—no flight logs. No ID. Just a spotlight. Now he's gone.'
Brown's family reported him missing for over two weeks, with no bank transactions or contact since early July.
Atlanta police have not released a public statement, but a Facebook post cited by Hindustan Times claims Brown shared fears of not living long due to stalking.
The lack of official updates has amplified public concern, with conspiracy theories circulating online about corporate or governmental interference.
This is Julian Brown, an inventor from Chicago that turns plastic into gasoline and diesel... Well after making quite a few posts about how he wasn't gonna live too much longer and how someone was...
Early Recognition and Patent Pursuit
Before vanishing on 3 July, Julian had been recognised for his innovative work, earning a provisional patent for his plastic-to-fuel technology in 2023.
The Douglasville Sentinel reported on 25 March 2023 that Brown, then 19, had built four prototypes using his welding skills to create a reactor that converts plastic waste into gas.
'I've always been passionate about helping the Earth,' Brown told the Sentinel, highlighting his drive to address environmental challenges.
This early achievement, documented before his viral fame, underscores his technical expertise and dedication, which later propelled his Plastoline invention to global attention.
The patent filing, a significant milestone for the young inventor, adds weight to concerns that his disappearance may be linked to the potential impact of his work on established industries.
Community Response and Ongoing Search
Brown's disappearance has galvanised his online community, with thousands sharing posts to raise awareness. 'Julian Brown, who has 1.3 million followers, has been missing for more than two weeks,' read a Facebook post quoted by Hindustan Times.
On X, @DAUGHTEROFLTEOD urged, 'If you possibly see this, there are bunkers everywhere dear they can't search them all. Move around.'
Despite his earlier rejection of grassroots support, the FBA community continues to rally behind him. Brown's GoFundMe remains active, although fundraising is lagging.
The US Census Bureau reports Atlanta's population of 510,823 faces rising crime rates, with 3,000 missing persons cases annually, adding context to the challenges of locating Brown.
His case echoes other high-profile disappearances, like Hannah Kobayashi's in 2024, though she was later found safe.
Without concrete leads, fears persist that Brown's environmental innovation may have put him in danger.
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