Image source, Reuters

A 22-year-old from Utah has been arrested over the killing of right-wing activist Charlie Kirk, we've compiled a timeline of the key developments:

Day one:

• Charlie Kirk is shot at a university event in Utah while debating students at 12:23 local time (19:23 BST), he is taken to hospital by his own private security
• Two hours later, US President Donald Trump announces Kirk's death on social media, saying he was "loved and admired by ALL"
• Utah Governor Spencer Cox launches a manhunt. The FBI pledges to dedicate "full resources" to the search
• CCTV footage captures the attacker, as a suspect is held, but later released. Trump vows to crack down on "political violence" in a post on Truth Social

Day two:

• In an update, the FBI says the shooter jumped off the roof and fled into a nearby neighbourhood. It recovered a weapon in a wooded area, which is later identified as imported Mauser .30-06 bolt-action rifle
• Utah DPS Commissioner Beau Mason says the suspect "appears to be of college age" as the FBI releases pictures of a "person of interest". It offers a $100,000 reward for information
• President Trump announces he will be awarding Charlie Kirk posthumously with the Presidential Medal of Freedom. In the late evening, Air Force Two leaves Utah for Arizona with Kirk's body onboard, accompanied by JD Vance and his wife

Day three:

• Trump says the suspect has been caught
• The suspect is named as Tyler Robinson, 22. In a news conference, Utah Governor Spencer Cox says: "We got him"
• Cox says inscriptions were found on bullet casings at the scene including "Hey fascist! Catch!", "O Bella Ciao, Bella Ciao" and "if you read this you are gay lmao"
• Tyler Robinson's police mugshot is released. He's accused of aggravated murder, obstruction of justice, and felony discharge of a firearm
• Mrs Kirk, Charlie's wife, speaks publicly for first time, saying she will never let her husband's legacy die

We've heard from Erika Kirk again this morning, in a post on her Instagram she shared videos and photos of her sitting over her husband Charlie's casket.

She is seen in one of the videos kissing his hand as he lies in the casket in a suit and tie, she can also be seen with a medallion, depicting a bald eagle - the national symbol of the United States.

As a reminder, JD Vance flew to Salt Lake City, Utah, on Thursday to retrieve Kirk's casket and transport it to Phoenix, Arizona - where Kirk's family lives - on the vice-presidential aircraft, Air Force Two.

In the post on Instagram, Mrs Kirk reiterates comments she made in her first public address last night - here's a recap of what she said.

She adds: "You. All of you. Will never. Ever. Forget my husband, I’ll make sure of it.

"Rest in the arms of our Lord baby as he blankets you with the words I know your heart always strived to hear, 'well done My good and faithful servant.'"

Image source, Getty Images

Last night Erika Kirk, the widow of Charlie Kirk, spoke publicly for the first time after he was killed in Utah on Wednesday.

Here's what she said:

• Mrs Kirk vowed to never let Charlie's legacy die, adding that his message will carry on being shared through his campus tour of US universities and his podcast - she did not specify how they would continue
• She said to the killer: "You have no idea the fire that you ignited within this wife, the cries of this widow will echo around the world like a battle cry"
• She thanked Kirk's staff, Vice-President JD Vance, and President Donald Trump, she addressed the president directly: "You supported him so well, as did he for you"
• On their children, she said she was grappling with how to tell their children, aged one and three, about Charlie's sudden death
• In a message directed to her husband, she said: "I can't wait to see you again one day"

Matt Spivey
Live editor

Image source, Turning Point USA

The killing of right-wing activist Charlie Kirk, and the following manhunt, sparked a wave of international reaction from across the political divide.

A single shot was fired at Kirk during an event at Utah Valley University on Wednesday and his death was announced by US President Donald Trump a short while later.

His widow, Erika Kirk, vows to never let his legacy die, saying in her first public statement on Friday: "The movement my husband built will not die."

On Friday, President Trump was the first to say that the suspected killer had been caught. During an interview with Fox News, he simply said: "I think we have him."

Utah Governor Spencer Cox later confirmed the arrest at a news conference and named the murder suspect as 22-year-old Tyler Robinson. He is due to be formally charged on Tuesday.

Officials said Robinson had been convinced by his father to turn himself in to police.

Image source, Getty Images

Cox said a family member told authorities Robinson had become "more political" in recent years, as messages found on bullet casings at the scene said "Hey fascist! Catch!" and "if you read this you are gay lmao".

Trump called for Robinson to be handed the death penalty.

Tributes and vigils have been taking place across America, and internationally, following Kirk's death, as questions have been raised over political violence in the US.

And that brings us up to date - stay with us as we continue to monitor the latest developments.