Suspect Gets Probation In Fatal HoldupProbation was granted in Jefferson County Common Pleas Court yesterday to a Steubenville man who was charged with being an accomplice in a Warrenton service station robbery during which a holdup man was shot and killed Sept. 8, 1971.Edward N. Jackson, 30, of Linden Avenue, Steubenville,' and formerly of the Smithfield •area, was put on probation for a year by Judge Dominick E. OJivito on a charge of carrying a concealed gun.The Court, on motion of the prosecutor, dismissed an armed robbery charge against Jackson who was accused of taking a wallet and $21.85 from Bernard Leo Reardon, an attendant at the Hickory Pit Taxaco Truck Stop at Warrenton.Reardon, who had taken a beating in another robbery a week earlier, shot and killed Robert Watkins, 26, of Highland Avenue, Steubenville, who was armed with a .25 caliber gun. Sheriff’s deputies who arrived on the scene apprehended Jackson sitting on a motorcycle at the nearby Ohio Coal Construction Co, coal stockpile. Jackson denied having been with Watkins or participating in the robbery but Deputies said he and Watkins were similarly attired and that two helmets were on the motorcycle.