It’s been a long week full of overzealous speculation about the motive behind Charlie Kirk’s assassination and his killer’s ideology.

The debate over political extremism has brought attention to a new threat tracked by federal law enforcement: nihilistic violent extremism.

A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. For the second day in a row, President Donald Trump has felt the need to assure ...

The most illuminating episode of political violence last week may have taken place not in Orem, Utah, where 22-year-old Tyler ...

Before his apprehension, speculation about the identity and motivations of Charlie Kirk's killer filled the void. A ...