Sky News’ Data & Forensics team has tracked and mapped the events before, during and after the shooting to answer questions about the attack.
Chaos broke out at Utah Valley University when prominent right-wing influencer Charlie Kirk was shot dead in front of thousands of people.
Mr Kirk, 31, was speaking to students about mass shootings on Wednesday when he was shot in the neck, leading students to flee and a manhunt for the killer beginning.
Many questions remain, with differing accounts and multiple videos across social media.
The Sky News Data and Forensic team has tracked and mapped the events before, during and after the killing to find out as much as possible about what happened.
When and where did the shooting happen?
Mr Kirk was speaking to around 3,000 people from under a small white tent on the campus when he was shot.
The event was part of his «prove me wrong» series, which saw the right-wing influencer visit campuses across the country and debate contentious subjects like gun control, free speech, LGBTQ+ rights and abortion rights with left-wing students.
The event began at roughly 12pm local time.
Mr Kirk was taking questions about mass shootings and gun violence when, at roughly 12.20pm, he was shot.
It was a single shot that struck him in the neck, a university spokesman confirmed.
Madison Lattin, who was standing only a few dozen feet to the left of Mr Kirk when he was shot, said: «Blood is falling and dripping down, and you’re just like so scared, not just for him but your own safety.»
Footage from the scene showed Mr Kirk being carried away within seconds of the shooting.
Where did the shot come from?
In a statement on Thursday, the FBI said they had tracked the gunman’s movements onto the campus, «through the stairwells, up to the roof, across the roof, to a shooting location».
They said they first tracked his movements from 11.52am, when they said he arrived on campus.
Videos from the event show the gunman was on top of the Losee Centre building — just over 130m away from where Kirk was speaking, according to an online measuring tool.
Two videos show a figure on the roof before and immediately after a shot is fired.
The first video shows what appears to be someone lying down. The person filming says «he just ran from over there» — pointing in the direction of a stairwell coming up the roof.
The second video is filmed in the moments after the shot is fired.