If some TRUE, RELIABLE sources later said...

...that some other Western forces were behind that hit and if those sources presented me the FACTS, I would believe, but I am not into conspiracy theories and I don't believe a single word from conspiracy theorists. Those "theorists" have no facts, just prejudices and beliefs.

What does this mean? Even if it turned out and Ukraine was somehow helped in these hits, those conspiracists could not say: We were right! because they did not know _anything_ more than I do, they had no facts, just a prejudice, just a preconceived notion that was not based on any facts and was worthless.