After that event, SIGARCH launched an investigation. After a couple years, here were the results of that investigation.
https://www.sigarch.org/other-announcements/isca-19-joint-in...
Worth noting is that the investigation actually initially found __no__ misconduct. Imagine that? A student kills himself, and you conclude it was the victim's fault, and not the environment that drove him.
It was only until this post [1] emerged that they relaunched the investigation.
[1] https://huixiangvoice.medium.com/evidence-put-doubts-on-the-...