Perhaps the whole point was making sure that side of the story never gets told to prevent any more reputational damage. Since Musk was personally informed that

Perhaps the whole point was making sure that side of the story never gets told to prevent any more reputational damage. Since Musk was personally informed that Tripp threatened to shoot people in the factory you'd expect some cooperation with the authorities. Instead the investigation was shut down when Tesla declined to make any possible witness available. As a singular incident it wouldn't garner to much attention but Tripp's account is adding to the pile already. Edit. Funny how all my comments received the same number of downvotes at almost the same time.