Underneath the message there is a report button, just press that and you can report him to Microsoft. If they investigate and determine that he is doing this sort of thing he will be banned.
English
-
Not to sound like a snob or anything, but that's not good enough. There are probably an endless amount of people that get reported all the time, there has to be another way of reporting when you have so much more evidence than the standard, "oh he's hacking" type of player that just spams reports.
-
Unfortunately there's nothing else you can do, Microsoft and bungie won't do anything if you try to come to them with more.