Read the alleged response by Tao Li to the original accusations against him: https://medium.com/@huixiangvoice/help-dr-tao-li-is-threaten...
This is a really shocking threat: he's saying that his school (the University of Florida) will take legal action against people making good-faith allegations of academic misconduct against him, because they have unspecified "ulterior motives."
How is this attempt to silence people an appropriate response to the death of one of his own postdocs? At the very least, the University needs to say whether it finds these threats acceptable and whether it is actually considering legal action.