Las Vegas Mob Museum is a repository of the extraordinary and unexpected. The actual wall that caught the bullets from the 1929 St. Valentine’s Day massacre is there. So is the hazmat suit Bryan Cranston wore in his role as Walter White in the hit AMC series “Breaking Bad.” A larger-than-life Dick Tracy cutout, complete with yellow hat and drawn Colt .45, stands guard over one of the exhibits, a pixelated reminder that crime does not pay. But the capper, the big surprise? Against all odds, even in a betting town, two public history majors from Appalachian State University – 2,500 miles to the east – discovered each other working just two cubicles apart.