first i've heard of that.
wouldn't be surprising if true. old commie/DS manipulation tool is to kill a family member when they want to shut you up or make you conform.
if the poisoning info checks out, we could see how this fight against the CCP will become very personal for Pompeo.
while I wouldn't support a tit-for-tat that involves extralegal means like this, I bet lots of children of CCP members are still residing in the USA and if law enforcement looks closely enough, there are probably reasons to legally detain them.
that would be one way of exerting leverage over the CCP. it's the old 'legally-held hostages' trick from dynastic China.