The shooting deaths of two Steak n Shake employees in November, which boosted the number of robbery-homicides in foodservice to eight since August, are stoking fears that the weak economy could lead to more carnage.
The bodies of Tammy Cantrell and Mark Gerstener were found on the morning of Nov. 10 at a St. Louis-area unit of the family-dining chain, joining a national crime blotter that also has had many robberies and other assaults at units of
