30/60 Hand for review

[Chief911]

Good old Pokerstars lunchtime 30/60 game, which is quite a bit tougher than evening time game. Villian is brand new player that I have no notes on, and I'm new to the table.

Go easy on me. [img]/images/graemlins/crazy.gif[/img]

Converter doesnt seem to be working, so here goes:

Hero is in MP with QhKs. Folded to me and I make it $60. SB and BB call.

Flop is 8d4dKc

Checked to me, I bet, SB raises to 60. BB folds, I reraise to 90. SB calls.

Turn is 7h. SB Checks, I bet, he calls.

River is an 8s making the board 8d 4d Kc 7h 8s

He checks, I check.

Here are my questions. Given a lack of read, should I have autobet the river? I guess my thinking was, he tried to get me out on the flop, but just called on the turn, meaning he either has nothing now, or was trying to win it with 2nd best pair (Which now has turned to trips). I dont want to be check raised with my TP. Was this a weak check?

Nick