Charlie Kirk, who was shot at a US university on Wednesday, is the eloquent spokesman for a younger generation of Donald Trump's hard-right Republican movement.
The 31-year-old boasts millions of followers on social media who delight at his whip-smart edits and his provocative takedowns of hecklers and ideological challengers.
Kirk's conservative ideology is closely aligned with Trump: he has backed the US president's false claims of fraud when he lost the 2020 presidential election and has used his heavyweight influence to lash out at migrants and transgender people.
In speaking gigs at American universities, he invites students to debate with him in quick-fire exchanges that often go viral online -- especially those with progressives who oppose his views.
It was during one of these