If one looks at the tail section that separated from the fuselage at some time before the rest descended, one can see a clear parting line at the top and down the sides to a point where the section exhibits a ragged edge.
The tail section broke cleanly at the top in structural failure and the bottom of the section was then ripped apart from the front section. The failure was the result of bending moments breaking the tube at the point of the clean failure line.
Absent the ability to control pitch the plane descended and crashed
The scattering of the debris field does not support that theory. The physical evidence is consistent with a internal explosion inside the plane. In other words, a bomb. Unless one of the conspiracy kooks can provide something other then wild accusation and nutty theories, they need to be laughed at, not treated seriously.
These sort of wacko articles serve only on purpose. They make it easier for the Government to discredit people who come forward with real evidence of US Government wrong doing. If you cry wolf every day and there is no wolf, people are not going to listen the day there is a wolf.