Spencer Cox also said suspect Tyler Robinson was in a relationship with a trans partner. Robinson is expected to be charged on Tuesday

The man arrested over conservative influencer Charlie Kirk’s assassination was romantically involved with a transgender roommate and had “leftist ideology”, Utah’s governor said on Sunday, confirming details likely to inflame the contentious national debate over the killing.

“The roommate was a romantic partner, a male transitioning to a female,” Cox said.

“This partner has been incredibly cooperative, had no idea that this was happening and is working with investigators right now,” he added.

“Again, all of these things – we’re trying to figure out,” he said.