Was it good call???

PokerStars - $0.45+$0.05|80/160 Ante 20 NL - Holdem - 8 players
Hand converted by PokerTracker 4

MP: 6.78 BB (VPIP: 16.67, PFR: 11.11, 3Bet Preflop: 0.00, Hands: 18)
MP+1: 29.41 BB (VPIP: 12.39, PFR: 10.38, 3Bet Preflop: 4.76, Hands: 681)
CO: 10.61 BB (VPIP: 66.67, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 4)
BTN: 37.28 BB (VPIP: 0.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 3)
SB: 13.13 BB (VPIP: 13.24, PFR: 11.86, 3Bet Preflop: 1.67, Hands: 204)
Hero (BB): 12.95 BB
UTG: 7.26 BB (VPIP: 20.00, PFR: 16.38, 3Bet Preflop: 7.89, Hands: 125)
UTG+1: 12.96 BB (VPIP: 5.26, PFR: 5.56, 3Bet Preflop: 10.00, Hands: 20)

8 players post ante of 0.13 BB, SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 2.5 BB) Hero has J T

fold, fold, fold, fold, fold, fold, SB raises to 13.01 BB and is all-in, Hero calls 11.83 BB and is all-in

Flop: (26.65 BB, 2 players) 3 4 K

Turn: (26.65 BB, 2 players) 6

River: (26.65 BB, 2 players) 4

how many were left in the torunament?

In these cases it's usefull to check SB's Steal tendency (or steal % from SB if you would have had a larger sample)

This is a nash clear call 38.7%, 22+ Ax K2s+ K5o+ Q6s+ Q8o+ J8s+ JTo T9s with +0.3EV
With <45% stealing tendency from SB JTs is a fold here. But keep in mind you need a decent sample, i think 100 hands from SB steal is a fine. The more, the better.

Keep going!

Fold imo

don't think most people are jamming >45% esp at $0.5