Excel99

I played a hand yesterday in a 6max .50/1NL rush table on full tilt which I would like some help with. UTG + 1 raises to 3 preflop (he has $140) and is a LAG and I'm sitting on the button with J10 off suit and re-raise to $10. Small blind Re-pops to $26, this player is quite good from past hands played and bluffs a lot from the small blind. Action is back on the original raiser and he just flats the $26. I'm sitting with $121, I tanked for a bit and decided to shove. The small blind insta-folded and UTG +1 snapped with QQ's.

A few questions about this hand, should i have just mucked the J10 originally to the guys first re-raise? Was the 5-bet shove justified in this spot, I put the UTG+1 on 99's 10s or JJs and thought he would fold?

I would rely appreciate some insight, and this is my first of hopefully many posts :)