You can swing up high until you are directly above him. Drop down and you can land on his back. Keep punching repeatedly until you have grounded him. You can now use your combos. Repeat this until he is defeated.
Whenever u r in a tight spot with lots of thugs around u push kick+jump+kick for handspring, kick+jump+jump for tackle,(i recommend that one) or punch+jump+jump for dive-bomb. He will hit everyone around him.