Not that you (or anyone else here who actually wants to be honest) doesn't know this, but which name allows for a narrative to be spun?
Vance wasn't a name/motive of convenience like Tyler initially was. More people knew who kirk was vs Hortman. Her death couldn't be used as spin because those gullible idiots wouldn't be and couldn't be bothered to care about a 1: woman and 2: Democrat dying.
The media saw no benefit in keeping her name (or his name) in the conscience of the country.
Piggybacking on this, as someone who spent much of his life in the media and taught journalism, I couldn't help but take notice of how wishy-washy CNN, which the right always paints incorrectly at left-wing-sponsored television, has been in covering Kirk's murder.
First, I keep watching on the chyron that one of the bullets that was found had the "Hey fascist, catch" engraved on it. That's reckless, because Trump has said people calling him fascist is dangerous. Meanwhile, taking that bullet in the context with the message of the other bullets shows it's pretty likely gamer slang, which makes it appear the suspect is a groyper, which would then make sense in why he might try to shoot Charlie Kirk.
Then, on what I've come to regard as the best show CNN offers, the late-night roundtable chaired by Abby Phillip, the host actually asked one of the panel to explain what a groyper is and why it might matter here. The panelist, who did a story on groypers a few years ago, quickly explained what they were but then qualified that there was no real reason to believe Robinson was a groyper yet.
This came just about five minutes after a right-winger on the panel said without pushback that he naturally believed the shooting was by someone on the political left just because of who the target was.