He never encouraged any rioting. I saw his whole speech. Amazing how when Democrats riot with murders, assaults, arson, looting, intimidation, vandalizing and blocking of roads they are peaceful protestors. There were over 100K watching Trumps speech. Is it a big leap to believe that some of the ones rioting weren't Trump supporters but pretending to be. There is precedence for it. When the tea party around ten years ago started growing in their rallies liberals infiltrated it and held of vile signs to discredit the conservative movement. Same thing happens with abortion rights rallies.
On thing for sure is Trump video taped himself asking for peace and Facebook, Twitter and Youtube refused to show it while the riot was going on.