Someone had decided that her views make her a villain worthy of death; it is a very harmful mindset to adopt. It is a similar thing that happened to Charlie Kirk, he had views that his assassin didn't like and he decided act on that mind set. Every day we are learning something new, we know the suspect drove from a different town and that he was seen on CCTV carrying a blunt weapon in his pocket, he went to her house and attacked her there.
When I say being a politician is as dangerous as being an astronaut, that's not a joke. I really think that way. If I ever found prestige, I would reject it, partly because of all these assassinations that are happening and partly because I don't like conditional respect.