AA vs Donk Lead Jam on Turn

1/3 9 handed

Hero - Young TAG player

Villain - mid 30-40s black male, played a bit too many hands and did a lot of calling preflop after an open, not much history played vs villain

Hand - Hero dealt AcAh, $725 eff

Preflop - $6 straddle from UTG
2 limps, hero in the CO makes it 35
folds to BB who min-raises to 70
2 limpers fold, hero 4-bets to 225
Villain just calls

Flop - Kh 7d 5d ($518)

BB check, hero bets 100
BB calls

Turn - 3d ($718)
BB donk jams 400

Hero??