Not much of a read on BB. He's tight and he seems like good player.

PokerStars No-Limit Hold'em, $0.10 BB (8 handed) FTR converter on zerodivide.cx

MP1 ($7.45)
MP2 ($5.40)
CO ($9.05)
Button ($7.35)
JL ($16.10)
BB ($21.35)
UTG ($4.90)
UTG+1 ($3.55)

Preflop: JL is SB with A, K.
1 fold, UTG+1 calls $0.10, 2 folds, CO calls $0.10, 1 fold, JL raises to $0.3, BB calls $0.20, UTG+1 calls $0.20, CO calls $0.20.

Flop: ($1.20) A, Q, 5 (4 players)
JL bets $1.15, BB raises to $2.3, UTG+1 folds, CO folds, JL calls $1.15.

Turn: ($5.80) 7
JL????