Rivering second pair in a 3BP

$1/$2 at Mohegan Sun. Thursday evening at a very soft table.

Villain is a younger guy from the Caribbean. He is very loose. Raises to multiple sizes (have seen him ISO to $6 and $11) but also limps and overlimps. In the past few orbits he has lost a large percentage of his stack across two hands (both times he had trips and opponent had a straight). $200 stack.

Hero is 32yo white guy. Should be clear to Villain that I am playing tighter and more aggressive than the rest of the table. This hand is the first time I've 3bet but I've only been at the table an hour. Covers.

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Two loose passive players limp EP. Villain raises to $10 in HJ. Hero 3bets AhJd to $40 in CO. Folds to Villain who snap calls.

Flop: Kh9c5s (Pot: $80). Villain checks. Hero bets $30. Villain calls quickly.

Turn: Kh9c5s 4h (Pot: $140). Villain thinks and checks. Hero checks.

River: Kh9c5s 4h Jh (Pot: $140). Villain bets $70, leaving himself with $60 behind.

Is this a spot to hero call second pair? Any thoughts on previous streets are appreciated too. Too loose pre-flop? Should I jam turn and try to fold out anything that isn't a King?