UTG bets 15bb

Multi-way River | 4-way: BTN | 100bb effective | Difficulty: Tough

Players in hand: UTG, MP, Hero (BTN), BB

Hero hand

K♥Q♥

Board

J♥T♥4♣A♥K♦

Action so far:
River K♦ on J♥T♥4♣A♥K♦, pot 20bb
UTG bets 15bb

Pot: 20bb   To call: 15bb

Villain range: UTG three-barrel after A turn K river: AA, KK, AK, QJ (rivered straight), missed flush

Your move: