Thousands of people have gathered ahead of a public memorial service for conservative activist Charlie Kirk .

Donald Trump is expected to lead tributes to the right-wing podcaster, who was fatally shot at a debate event in Utah , at the service in Arizona later today. Many prominent members of Trump's administration, including Vice President JD Vance, are expected to attend the memorial at State Farm Stadium in Glendale, Arizona, where Kirk's group Turning Point USA is based.

Security at the memorial is expected to be tight with a huge US Secret Service presence on site. A gunman posing as a police officer was arrested on Friday night at the stadium but it was later revealed he was conducting a security sweep ahead of the service. 13:55 Elizabeta Ranxburgaj

Suspect Tyler Robin

See Full Page