Frank DeKova parlayed a sinister scowl, piercing eyes and an all-around menacing attitude into a long career of playing cold-blooded trigger-men, rampaging Indian chiefs, brutal Mexican army officers and the like. So it would probably come as a shock to those who know his work to discover that, before he became an actor, he was--of all things--a schoolteacher. Born in New York in 1910, DeKova ga...