The BB in this case is pretty laggy with a big emphasis on the aggy part. The hand right before this one he donked off a lot of chips with AQ UTG. So I figured there was a chance he was tilting a bit and therefore his pushing range was quite wide.
PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (9 handed)
Button (t1675)
SB (t6060)
BB (t1850)
UTG (t3300)
Hero (t4225)
MP1 (t1870)
MP2 (t5480)
MP3 (t2545)
CO (t2930)
Preflop: Hero is UTG+1 with

,

.
1 fold,
Hero raises to t300,
2 folds, MP3 calls t300,
2 folds, SB calls t250,
BB raises to t1850,
Hero raises to t4225, MP3 calls t2245 (All-In), SB folds.
Flop: (t8920)

,

,
(3 players, 1 all-in)
Turn: (t8920)
(3 players, 1 all-in)
River: (t8920)
(3 players, 1 all-in)
Final Pot: t8920
Results in white below:
BB has Ad Ac (full house, aces full of threes).
Hero has Td Th (two pair, tens and threes).
MP3 has Ah Qs (two pair, aces and threes).
Outcome: BB wins t8920.