EXTREMISMThe Rise and Fall of Terrorgram: Inside a Global Online Hate Network

By A. C. Thompson and James Bandler

Published 15 March 2025

White supremacists from around the world used Telegram to spread hateful content promoting murder and destruction in a community they called Terrorgram. ProPublica and FRONTLINE identified 35 crimes linked to Terrorgram, including bomb plots, stabbings, and shootings. After several arrests of alleged Terrorgram members and reforms by Telegram, experts expect that extremists will find a new platform for their hate.

On Jan. 19, 2024, the sheriff of Jacksonville, Florida, released a 27-page manifesto left behind by Ryan Palmeter, a 21-year old white man who had murdered three Black people at a Dollar General store before turning the gun on himself.

The Florida Times-Union, a prominent local news outlet, said it would not be publishing the document, which it said used the N-word 183 times and had an “overall theme of white superiority.” T.K. Waters, the sheriff, said he had posted what he described as the “rantings of an isolated, hateful, madman” to keep his promise of public transparency. An attorney for one of the victims’ families urged the public “to not give Palmeter the satisfaction of publishing or distributing his manifesto,” saying it “contains not one redeemable thought.”

Thousands of miles away, in Elk Grove, California, Dallas Humber saw Palmeter’s view of the world as perfect for her audience of online neo-Nazis. Humber, a now-35-year-old woman with a penchant for dyeing her hair neon colors, was a leading voice in an online network of white supremacists who had coalesced in a dark corner of Telegram, a social media and messaging service with almost a billion users worldwide.

She and her comrades called this constellation of interlocking Telegram accounts Terrorgram. Their shared goal was to topple modern democracies through terrorism and sabotage and then replace them with all-white ethno-states.

Humber quickly turned Palmeter’s slur-riddled manifesto into an audiobook that she narrated in a monotone. Then she sent it into the world with her signature line:

“So, let’s get this party started, Terrorbros.”

The manifesto immediately began to spread, pinballing around the worldwide Terrorgram scene, which celebrated mass shooters like Palmeter as “saints.”

The Terrorgram story is part of a much larger 21st century phenomenon. Over the past two decades, massive social networks like X, Facebook and Telegram have emerged as a powerful force for both good and evil. The ability to connect with like-minded strangers helped fuel uprisings like the Arab Spring and Iran’s pro-democracy movements. But it has also aided extremists, including brutal jihadist organizations like the Islamic State group and white supremacists around the world.