We don't know what happened, true, but we do know some of what went on. We know these three in jail were the last to see Natalee that night, and they lied about what occurred more than once, changed stories...which most cops say is evidence of guilt. Plus they implicated two completely innocent men.
Are you sure? Are you positive?
Lets just say: To our knowledge or what has been reported that Joran, Statish, and Deepak were the last to see Natalee.