It’s telling that throughout the entire article, neither the author nor the quoted individuals make a single mention of the personal and societal importance of mental health.

I think that could be guessed without seeing the writing in the article as well, though obviously you're right.

Some killers are just psychopaths/sociopaths (like Ted Bundy) but the vast majority have some serious problems which have unfortunately been missed or more likely hidden and she's received no help for them leading to.... This. It's awful.

I work in a hospital. Management should have been all over this but it sounds very much like they didn't want any trouble so ignored it as much as possible.

Staff should have one to ones with their managers including checking up on their welfare which is done properly could have picked up on something in the killer's behaviour or mental health which wasn't right.

Wards should have high standards of monitoring and if there's an unexpected death the reason why should be fully investigated. If there was any room for doubt they should have at least escalated it to into an independent internal investigation - it's not like there were a lot of potential suspects.