Reads on NoRushes - Very laggy...poker officestats shows he has a preflop raise of 23,7 %. So his preflop raise dosn't scare me that much, and i'm getting tired of his raises. So I planed on just reraising him out if the flop was raggy, or perhaps get lucky and hit my set.

Hand 559498539, Started at 2006-06-03 18:44:49
Table Boulogne: $0,25-$0,25 No Limit HE (Real)
Seat 1: NoRushes ($26,05 in chips)
Seat 2: NU66ETT ($29,65 in chips)
Seat 3: MarsVolta72 ($27,80 in chips)
Seat 4: Kippos ($10,40 in chips)
Seat 5: blair9999 ($14,75 in chips)
Seat 6: R.Ramon ($25,20 in chips)
Seat 8: kemurray1 ($2,75 in chips) (on the button)
Seat 9: Fold333 ($9,70 in chips)
*** Blind Bet Round *** :
Dealt to MarsVolta72: 4h
Dealt to MarsVolta72: 4c
Fold333 : Post Blind ($0,15)
NoRushes : Post Blind ($0,25)
*** Pre-Flop *** :
NU66ETT : Fold
MarsVolta72 : Call ($0,25)
Kippos : Fold
blair9999 : Fold
R.Ramon : Fold
kemurray1 : Fold
Fold333 : Call ($0,10)
NoRushes : Bet ($1,25)
MarsVolta72 : Call ($1,25)
Fold333 : Fold
*** Flop *** : 7h Jd 4s
NoRushes : Check
MarsVolta72 : Check
*** Turn *** : [ 7h Jd 4s ] Ah
NoRushes : Bet ($2,25)
MarsVolta72 : Call ($2,25)
*** River *** : [ 7h Jd 4s Ah ] 9c
NoRushes : Bet ($3)
MarsVolta72 : Raise ($10)
NoRushes : Raise ($19,30)
NoRushes : All In
MarsVolta72 : Call ($12,30)
*** SUMMARY ***
Pot: $51,85 | Rake: $0,50
Board: [ 7h Jd 4s Ah 9c ]
NoRushes bet $26,05, collected $51,85, net $25,80 Shows [ Jc Js ] (three Jacks)
NU66ETT lost $0
MarsVolta72 lost $26,05 Shows [ 4h 4c ] (three fours)
Kippos lost $0
blair9999 lost $0
R.Ramon lost $0
kemurray1 lost $0
Fold333 lost $0,25


Okay, so my question is, is it ever correct to fold on the river after he reraised me? I did actually put him on pp Jacks, cause it makes perfect sense with his check on flop after his preflop raise. However I did call, cause can't he have a hand like AJ? But then again what hands would make a move like that on the river? ...after I make a reraise like that.
The most likely hands he can have I think is PP Aces, PP Jacks or AJ, and the only hand I can beat is AJ. So would it been right to go with my intuition here and actually fold?