OMG, i can't even begin to say how rewarding that felt.
I went through each case making sure there was no other reason other than "this guy/gal just really deserves a punish" for his/her behavior, and was able to hopefully make at least a small impact on improving the LoL community.
Unfortunately the 3rd case I got had no chat logs, item builds, or anything other than the reporting summoner's comments. Had to skip that one, but oh well.
Here's to hoping that the tribunal is fully up and running soon!