Live coverage above: NewsNation's Leland Vittert at the Charlie Kirk memorial service

(NEXSTAR) — Supporters are set to gather Sunday in Arizona to pay tribute to Charlie Kirk, the conservative activist who was assassinated in Utah earlier this month. The free tribute event, hosted by Kirk's Turning Point USA, is expected to draw tens of thousands of supporters and mourners.

Kirk, 31, was fatally shot while speaking at Utah Valley University in Orem, Utah, on Sept. 10. A 22-year-old Utah resident is now facing charges in his death.

Sunday's memorial service is set to take place at State Farm Stadium in Glendale, Arizona, just outside of Phoenix, where Turning Point USA is based.

Doors opened at 11 a.m. ET, but crowds were already gathering outside the stadium Saturday night.

The progr

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