A sheriff’s deputy on his way to the scene of an accident on Old Shelbyville Road on Friday afternoon unintentionally caused a separate wreck on West Main Street.Schroeder Wallace, 34, was driving west on West Main when a sheriff’s patrol car came up behind him with flashing lights and sirens on. The deputy was on his way to the scene of an accident which had just occurred at the intersection of Old Shelbyville Road and Laws Road.“I wasn’t thinking. It happened so fast,” said Wallace.