For this one, you're going to want to fight your way to level 9. This can be done on the easiest setting. If you have completed the game then select this level.
What you want to do is throw people into the window panes, it takes 10 hits, this is either throws, combos or weapon hits. You can do throws by grabbing hold of them and throwing them in the opposite direction you are facing. There's one on the right and one on the left.
I've added a few screen grabs of the elevator section before and after they've been broken.