The alleged killer of right-wing activist Charlie Kirk appeared to take responsibility for the shooting on the messaging platform Discord, a company spokesperson has confirmed to CBS, the BBC's US partner.


According to the spokesperson, Tyler Robinson, 22, messaged friends in a chat on Discord hours before he was arrested last week in connection with Kirk's shooting at an event at Utah Valley University.


It was me at UVU yesterday. im sorry for all of this, reads a message from an account that allegedly belongs to Robinson, according to the spokesperson and a law enforcement source.


Robinson, who has not yet been formally charged, is due to appear in court on Tuesday. Arrested on suspicion of aggravated murder, felony discharge of a firearm, and obstruction of justice, he could face the death penalty.


The Discord messages which are said to be from Robinson were first reported by the Washington Post and are thought to have been written and posted towards the end of a manhunt for Kirk's killer that lasted more than a day.


Charlie Kirk, 31, who was a controversial figure in US politics and a trusted ally of President Donald Trump, was speaking at Utah Valley University when he was hit in the neck by a single bullet. The killing sparked outrage, with political leaders accusing each other of inciting hate through rhetoric.


Law enforcement sources have told CBS News that Robinson and his friends joked about the shooting before his arrest in a group chat on Discord involving more than 20 participants. The spokesperson for the platform indicated that they found no evidence the suspect planned the incident or promoted violence on Discord.


Investigators are still working to establish a motive for the killing. Reports indicate Robinson was questioned by the FBI, and messages reportedly found on his phone indicated plans related to the shooting. The implications of this tragic event continue to unfold, especially in relation to the political climate in the US.