Attendees at the campus event where US conservative activist Charlie Kirk was fatally shot on Wednesday have described mass panic after a shot was heard.
Kirk, 31, was killed after he was hit in the neck by a single bullet, which law enforcement believes came from a shooter on the roof of a nearby building.
The influencer and close Donald Trump ally had been speaking to about 3,000 people on his American Comeback Tour at Utah Valley University.
Videos on social media show Kirk talked about gun violence moments before he was shot.
One eyewitness recounted, Me and my buddies were having a good time... until I saw his body actually in slow motion kind of fall over. Another witness described, All I hear is screaming and I see people running... because I don't want to die.
The gunfire caused immediate chaos, with audiences diving for cover. Kirk's death has led to an ongoing investigation, with officials confirming the bullet was fired from a distance of 100 to 200 yards away. Questions have arisen about the security measures provided at the event, with criticisms of insufficient protocols prior to the tragedy.