Dark, I totally understand your frustration and annoyance at the lack of collective effort and responsibility on the part of your fellow project participants. If I read your post correctly, you should have received that last student's contribution by now...so, have you? Or did you end up having to complete the assignment yourself?

I admire your strategy when it comes to ensuring success with group endeavors. I've often taken on extra work or helmed projects for the same reasons. I hope you get the excellent grade you deserve. Keep us posted!