Kirk's killer had eluded federal agents for about 33 hours after Wednesday's shooting, in which a sniper fired a single gunshot that killed Kirk, a close ally of US President Donald Trump

FBI reward of $100,000 and direct appeals for public support appear to signal law enforcement’s continued struggles to identify the killer of Trump ally

Investigators obtained clues, including a palm print, a shoe impression and a high-powered hunting rifle found in a wooded area along the path the assassin fled

The FBI said it is offering a reward of up to $100,000 for information 'leading to the identification and arrest of the individual(s) responsible' for the killing of the rightwing activist and Trump ally

FBI says ‘high-powered bolt action rifle’ found in wooded area, as well as footwear, a palm and forearm imprints; suspect ‘blended in’ and appears to be of ‘college age’

Following the fatal shooting of US activist Charlie Kirk, Irish leaders warn of rising political violence and the dangers of online radicalisation

Eyewitness video captured confusion among the crowd at a Utah University event on Wednesday after US right-wing activist and commentator Charlie Kirk, an influential ally of President Donald Trump, was fatally shot in the neck.

What was meant to be a moment of silence in the US House of Representatives on Wednesday for the slain conservative activist Charlie Kirk erupted in shouting and finger-pointing, an episode that provided a bitter illustration of a nation divided by ...

Charlie Kirk, the chief executive and co-founder of the conservative youth organisation Turning Point USA, has been shot dead at an event at a Utah college. Mr Kirk was a top podcaster, culture warrior and ally of US president Donald Trump.

Shooting of conservative activist Kirk in Utah still an active investigation, say authorities, as Donald Trump vows to find everyone ‘who contributed to this atrocity’

Author, activist and host co-founded Turning Point USA and used huge social media reach to push rightwing causes

Kirk was giving a presentation when shots were fired and "to the best of our knowledge he was hit and taken with his security team away from the premises"