Prosecutors build a vivid picture of the suspect's movements as they seek to try the 23-year-old.

"Devastating" evidence, including DNA on a rifle and a text confession, shows a 23-year-old should be tried for murdering Charlie Kirk last year, prosecutors told a court this week, as the defence team tried to poke holes in the case. The preliminary hearings gave prosecutors a chance to outline probable cause to try Tyler Robinson, 23, on charges including aggravated murder, a death penalty offence in Utah. They painted a vivid picture of his movements in the 48 hours surrounding the murder of Kirk - using CCTV, witness testimony, a taped interview with Robinson's roommate and messages between the pair. The defence for Robinson, who has not yet entered a plea, sought to sow doubt on all of it. Kirk, a key Trump ally, founder of conservative youth organisation Turning Point USA and a 31-year-old father-of-two, was shot once in the neck as he addressed a crowd on the campus of Utah Valley University on 10 September last year. For the past five days, lawyers for Robinson, a trainee electrician, raised repeated objections to evidence and testimony on arguments including hearsay and the tainting of potential jurors. They questioned the credibility of experts, DNA and ballistics reports with prolonged cross-examination about testing, interpretation and protocol. But Chief Deputy Utah County Attorney General Chad Grunander told the judge: "Your Honour's heard four days of testimony now.