I'm personally not a fan of tweets for fact checking, but there was this from earlier in the day, the outer tweeter is or at least was a newsmax reporter

https://communities.win/c/KotakuInAction2/p/1AR0LWFoSw/benny-johnson-confirms-the-assas/c

Edit:

Here is a decently long news article about it

https://nypost.com/2025/09/13/us-news/charlie-kirk-shooter-tyler-robinson-lived-with-transgender-partner/

Both NYPost and Fox News reporting

I'm personally not a fan of tweets for fact checking, but there was this from earlier in the day, the outer tweeter is or at least was a newsmax reporter

https://communities.win/c/KotakuInAction2/p/1AR0LWFoSw/benny-johnson-confirms-the-assas/c