Karolyn Galarza was the head of the group last year. You can try contacting her at email@example.com or PM her under her screen name here: karolyngalaraza .
The whole issue of carry at GMU got pretty much settled via a lawsuit that someone brought and lost. While bitter feelings remain about them not following some advice or accepting offered assistance at least they tried their best. The new AG opinion about carry at UVa holds some indicators of how some folks who are not students, staff or faculty at GMU might get around the existing prohibition on carry inside buildings, which might also eliminate the threat of expulsion/firing hanging over folks with direct ties to GMU.
Best wishes to you.