You can tickle me pink, orange, red, or blue, but not grey
Did he start up another account and file a hacking report? If he didn't, then you can help by telling him that and donating any extra gold that you may have if you want. It may take a while, but if your friend fills out a hacking report and just waits patiently, he will get his stuff back. ^_^ Hope everything turns out well.
Because grey will not do.