2550 Very Weird Hand

[AK87]

No real history, I have aggressive image and villain has never done anything like this from what I have seen

Full Tilt Poker Game #3472250922: Table Rock Port (6 max) - $25/$50 - No Limit Hold'em - 19:20:05 ET - 2007/09/05
Seat 1: -AKwow- ($6,694)
Seat 2: what a donk ($925)
Seat 3: baDONKaD0NK88 ($4,985)
Seat 4: boycie56 ($6,438)
Seat 5: Semifaded ($2,924)
Seat 6: mortonpoker ($4,900)
baDONKaD0NK88 posts the small blind of $25
boycie56 posts the big blind of $50
The button is in seat #2
*** HOLE CARDS ***
Dealt to -AKwow- [Jd Ad]
Semifaded folds
mortonpoker raises to $200
-AKwow- calls $200
what a donk folds
baDONKaD0NK88 folds
boycie56 folds
*** FLOP *** [7c 4s 5d]
mortonpoker checks
-AKwow- bets $350
mortonpoker calls $350
*** TURN *** [7c 4s 5d] [Kd]
mortonpoker bets $1,075
-AKwow- has 15 seconds left to act
-AKwow- has requested TIME
-AKwow- calls $1,075
*** RIVER *** [7c 4s 5d Kd] [7h]
mortonpoker bets $3,275, and is all in

???

Who jams turn? River?