To call or not to call

[Tokyo!!]

7 players remain in a 26 person tournament, blinds 400/800 with 100 ante, big stacks have roughly 20k. Relevant stacks, CO, 10k, Button 6k, Hero 7600 after posting BB. Hero is 6th of 7 in chips, and top 5 pay.

Folded around to CO, who is extremely loose (has called all-ins with K3o, 43s, etc just to try to bust people) and aggressive, but knows how to play postflop. He is likely bored by the small stakes tournament we are playing. He raises to 3000. The Button who is a solid player, looks at his cards, quickly counts his chips and moves all-in for 6k. The SB folds. Hero looks down and has JJ.
All-in or fold? There is about 5 minutes left in the current level (20 min levels).

[KingDan]

Allin.