bad guy is 26/4.3/o.5

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($25.60)
Hero ($37.20)
UTG+1 ($4.65)
MP1 ($24.65)
MP2 ($35.55)
MP3 ($24.25)
CO ($24.40)
Button ($9.45)
SB ($9.25)

Preflop: Hero is UTG with A, K.
Hero raises to $1, 3 folds, MP3 calls $1, 3 folds, BB calls $0.75.

Flop: ($3.10) 5, J, K (3 players)
BB bets $1, Hero raises to $4, MP3 folds, BB raises to $10, Hero folds.

Final Pot: $11.10

My thinking was that he hit a set or had KJ, if i call his reraise then i'm commited to going all-in and i don't like the idea of going all-in with one pair, especially to a reraise.