JJ put to the test on the turn

[mike l.]

black JJ in utg+1 good live 15-30 game, i openraise. button calls, he thinks im fos, he is a loose player. sb and bb call. sb is new to the game. he plays every hand and he is randomly aggressive. bb is some fish. 4 of us.

the flop is Qd8d2c. checked to me, i bet, they all call.

the turn is 4s. checked to me, i bet, button calls, sb checkraises, bb folds. what should i do the rest of the hand?