I&#x27;m taking a guess that you probably weren&#x27;t a personal witness to the interactions between Salieri and Mozart and thus can&#x27;t say for sure if he was involved with Mozart&#x27;s death.<p>What <i>is</i> a historical fact is that Salieri openly and explicitly prevented Mozart&#x27;s career from going where Mozart wanted it to go. Mozart&#x27;s talent won in the end, but Salieri <i>did</i> go to great lengths to try and keep Mozart from thriving. He was well-known to have placed many walls in the path of work for Mozart, and this led to the reputation he has -- a product of his own making.<p>Whether or not he actually killed Mozart we can never truly know. But that there is this &quot;rumor&quot; that he might have is only due to Salieri&#x27;s own awful behavior in the treatment of Mozart.