Villain has been playing solidly and taken out a couple of players who were being all-in monkeys againsty each other. He waited and then hit trips with pockets 9s.
Heros image is tight, built up slowly to $75

Hero, SB: $75
BB:$12
Villain: $85

Dealt to Hero : A 5 sooted hearts.

Hero raises to $.75
BB re-raises to $2
Villain flat calls, and hero just calls.

Flop is : A, A, J rainbow.
Pot is $6

Villain checks
Hero raises $1.5
BB re-rasies $3

Villain calls
Hero re-raises to $12
Pot is now $14.5
BB folds
Villian GOES ALL IN.

Call? Fold?
Hero has trips, but its a really weird all-in. Straight draw trying to push off? Trip J's, A better kicker?