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Authorities are examining the online activity of the 22-year-old suspect charged in the fatal shooting of conservative speaker Charlie Kirk, as experts warn that digital subcultures are increasingly fueling acts of violence.

A Calculated Attack

In a crime that shocked the nation, 22-year-old Tyler Robinson is accused of carrying out what investigators describe as a carefully planned assassination. Unlike most mass shooters who expect to die during their attacks, an expert tells Fox News Digital that Robinson devised escape routes and left behind a detailed digital trail.

"This one is incredibly interesting because of how long he says, through the text that has been disclosed, he had been planning this and for how long i

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