[taxat]

One more thing to improve future posts is using the suit icons. Also, don't post the showdown until you receive comments.

Don't be afraid of third suited card--raise the turn. I would put BB on a range of good hands, AA-QQ, AKs, AQ, KQ because he bets into the capper on the flop. He probably doesn't have QQ because he didn't reraise on the flop unless he decided to slowplay.

On the turn, it looks like BB picked up a four-flush and/or two pair. You have to raise the turn to charge everyone with only one spade and if you get three-bet on the turn you can start to worry.

River is tricky because a calling station finally woke up when the board paired. I would call the river because it is unlikely someone hung around with middle pair. Plus, I don't think you have to worry about a three bet from BB with the paired/flushy board so you aren't getting trapped for more bets.