This was the story from The New York Post and Fox News Saturday (which has been removed since then)
Charlie Kirk’s alleged assassin, Tyler Robinson, was living with a transgender partner who was in the process of transitioning from male to female, a law enforcement source (Unnamed of course, not even a department listed) confirmed to The Post Saturday.
That individual, who has yet to be publicly identified by the authorities, is fully cooperating with the FBI on its investigation into the fatal shooting of the conservative activist, the source added. The relationship was first reported by Fox News’ Brooke Singman.
According to public records, Lance Twiggs, 22, resided at the same address where Robinson lived. A relative of Twiggs confirmed to The Post Saturday that “yes, they were roommates.”
Today from Newsweek (We no longer have a name or identity) of the trans-roommate 
Tyler Robinson, the man accused of assassinating Charlie Kirk, lived with a romantic partner who is transgender and cooperating with authorities, Utah Governor Spencer Cox has said.
"The roommate was a romantic partner, a male transitioning to female," Cox said during an appearance on CNN on Sunday. "This partner has been very cooperative, had no idea that this was happening."Robinson's roommate has not been charged with a crime, and authorities have not released their name.
An unnamed relative of the roommate told the network that the person "hates conservatives and Christians." The relative said she suspected her family member had influenced Robinson's politics in the year they had been dating.
Both of Robinson's parents are registered Republicans. But Robinson's political registration lists him as unaffiliated and his status as inactive, indicating he has not voted in the past two general elections, according to public records reviewed by Newsweek.
This is legit one of the lamest, unsubstantiated tales I have heard in quite some time. Maybe since the voting machines were rigged in 2020. I mean since an unnamed relative said an unidentified trans-lover, roommate had to have radicalized Robinson, it must be true. These right-wing outlets legit know they can give you any fictional story with no names, real details, and you will just soak it in to feed your feelings and your preferred narrative.