highly unlikely some young guy who had a relationship with his roommate who is a transexual both being furries are right-wing.
Also, highly unlikely a right-wing is going to shoot another right-wing because he is not "radical enough". Sure bud, if you want to believe so ;)
Again: None of the described above makes sense. Why would a gay furry shoot someone because he is not radical enough? You have everyone who knew the guy saying that he was very left-wing.
Also, try to check some of the content of Charlie Kirk, many trans students come up to him to confront him on his views, for example https://www.youtube.com/shorts/SNcVnPkZlVI
Furries are people, and any group of people is going to have a lot of different views and beliefs represented amongst its members.