A memorial service for conservative activist Charlie Kirk in Arizona today is set to feature President Trump, Kirk's widow, Erika Kirk, and more than half a dozen top Trump administration figures addressing an NFL-sized crowd at State Farm Stadium.

Kirk, the 31-year-old co-founder of Turning Point USA, was shot and killed as he spoke at an event at Utah Valley University on Sept. 10. A 22-year-old suspect has been charged with aggravated murder .

Kirk's assassination has rocked the conservative world . A prolific and sometimes controversial speaker, Kirk was known for his college campus events and debates, his role in mobilizing GOP voters and his close ties to the Trump administration.

Where is Charlie Kirk's memorial service taking place?

The service takes place a

See Full Page