correct play ? JJ facing a limp reraise

[530uts]

300$ MTT at the Taj.
87 ppl to start top 9 cash
down to 35 average stack ruffly 12k, sitting w/ 17k
200/400/50
UTG Limp (18k)
MP limp (under 2k)
MP+2 limp (16k)
LP limp (6k)
Hero on button finds JJ ..& raises to 2k (thoughts on this?)
UTG call
MP calls all in for less than ammount
MP+2 calls
LP Reraise all in for 4k more
( correct play ) = ?

-Any & all thoughts please