Make food court clerk move out of his store
Go to the mall at North Point and go to one of the Food Courts. Once there go to a store and point a gun at the clerk, and then let go and do it again and again until he looks as if he drops really far down or isnt inside it anymore. When that happens go around the back of it and he should be in that vecinity. If not go outside or until he is back and try it again.