Ike Schwartz thought he could return to his hometown and ditch the demons that pursue him. More than anything, he wanted to blot out the pain and anger that came when his wife of less than a month was gunned down in a CIA foul-up. So he buried himself as sheriff in rural Picketsville, Virginia, a community indistinguishable from any of the hundreds of small towns that hang like beads on Interstate 81 running from Pennsylvania down to Georgia.
Aside from its Civil War history, Picketsville's only real claim to fame is Callend College, a private women's school located just within its...