Just found out that it haven't been posted on the forum... Not sure if it is a correct place to post this information since numerous unverifiable and speculative info are involved, if admin think it is not a correct place then please help move the post to one.
There is a Chinese person named Guo Wengui https://en.wikipedia.org/wiki/Guo_Wengui
who arrived onto US in recent years and started talking a lot about inside politics of China in recent years. It should be noted that many of his leaked information are unverifiable and should be taken with a grain of salt.
In September 2017, he stated in a livestream that many of the Chinese civilian on board the aircraft was actually doctors and individuals related to a liver transplant for the son of Jiang Zemin, together with their family. And Chinese government would like to cover up organ harvesting from criminals so he believe that it is the Chinese government that sabotaged the aircraft and killed those who are involved.
He also pointed out that there were Chinese policeman and inspector on the aircraft but they were simply reported as civilian and families with victim in MH370 accident were arrested for national security reason when they attempted to protest.
He also mentioned the member of Chinese Central Bureau who have visited Malaysia multiple times to coordinate rescue efforts, said he publicly stated that "We have 100% control on Malaysia and the Philippines", suggesting the plane was not found simply because they don't want it to be. He also mentioned a talk with a higher up in PLA on the topic of Chinese hackers, and it was said that "we can control matching of spacecraft thousands of mile away on the space, what else we can't control within thousands of mile?", and, "Nowadays you don't need to be physically there to kill someone. Internet of Things is the most convenient tool to do so."
Related reading: https://www.gaia.com/lp/content/guo-wen ... arvesting/