Suicide update

During fall 2016, an SDE1 in my group attempted to commit suicide right from an Amazon building. A few minutes before he did that, he sent out an email to all his colleagues explaining why this happened. Briefly, he had a difficult manager and HR business partner was useless (what a surprise!). He tried to transfer to another team but his manager put him on PIP so he was to be fired. 

Amazon deleted the email from our machines and only a few of us had a chance to read it but what's most concerning is: a) this email was nowhere in the news so we can only guess how many Amazon settled / bribed for their silence and b) his manager was promoted within the next 6 months. 

Seriously, what is going on here?