CUMMING — Although their feelings of relief mingled with alarm, members of the downtown Cumming business community said they were grateful a Friday courthouse confrontation ended with limited casualties. An armed man identified by authorities as 48-year-old Dennis Ronald Marx of Cumming was killed after triggering a firefight with authorities when he attempted a violent entry into the Forsyth County Courthouse. One deputy was wounded in the exchange of gunfire but is expected to recover.