The masked men in Washington on July 4 are both unserious and threatening.

On his YouTube channel, Brandon Herrera has discussed the relative merits of weapons used in mass shootings and made light of political violence. He’s now on a glide path to the U.S. House.

This article is part of TPM Cafe, TPM’s home for opinion and news analysis....

The Trump administration’s appointment of Elias Irizarry, who was 19 at the time of the Capitol attack, has alarmed some in the Defense Department.

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Authorities say the two teenagers who opened fire on the Islamic Center of San Diego, killing three, became radicalized online.

"Gender has always been an important throughline of fascist politics," says Shane Burley.

Within minutes of the shooting, the Trump administration and right-wing influencers began disparaged the man shot by a federal immigration officer on Saturday in Minneapolis.

While the posts are a small part of the administration’s overall social media presence, experts say they are clear references to white supremacist messaging.

Featuring James Kitchen, Steve Grocki, Justin Sher and Kavitha Babu; moderated by Senior Research Fellow Barry Jonas.

The use of markings on ammunition is a new trend of shooters trying to ensure their messages are disseminated publicly, experts say

The Charlie Kirk shooter’s engravings have been mined for clues of a motive. For those steeped in meme culture, they show only that he was “terminally online.”

An orange wall helped Bellingcat identify the location of an annual far-right event attended by neo-Nazis and white nationalists.

Authorities in Utah say two men have been arrested on suspicion of placing an incendiary device under a news media vehicle in Salt Lake City

Kirk was known for sharing extreme and provocative positions online and in frequent on-campus appearances. His killing has sparked messages threatening violence.

“Charlie Kirk's assassination pulled me out of retirement. More work must be done.”

There have been a string of shootings in the past year where the performance of online culture played a key role.

The inscriptions on bullets recovered near the scene of Charlie Kirk's murder appear to reference video games like ‘Helldivers 2’ and online furry roleplay, not a legible political ideology.

Ten years ago, the far right conspiracy world went bonkers over the supposed military takeover of Jade Helm 15. Turns out that they were for it the whole time.

The story about how homelessness among military veterans fell can tell us a lot about what we need to do in order to end the larger crisis.

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