Charlie Kirk's alleged assassin Tyler Robinson made chilling remarks about the conservative commentator during a family dinner in the lead-up to his murder.

Robinson, 22, brought up Kirk's visit to Utah Valley University on September 10 and spoke of his dislike for the 31-year-old MAGA influencer, family members told investigators.

'They talked about why they didn't like him and the viewpoints that he had,' Utah Governor Spencer Cox revealed in a press conference this morning.

The family members also told police Robinson had described Kirk as 'full of hate and spreading hate'.

Robinson's comments raised a red flag among his family - so much so that they told police about the conversation following his arrest for Kirk's murder.