If I live in the USA, what must I do to verify the supposed death of someone in China without having to pay a private inverstigator $300.00.

Assuming they use death certificates in China, contact the China embasy and ask them what the procedure would be to get a copy of one.

Assuming they use death certificates in China, contact the China embasy and ask them what the procedure would be to get a copy of one.

Thank you for the advice.
Will do so.