The man accused of murder in one of Nebraska’s oldest cold cases is seeking to have his indictment thrown out for prosecutorial misconduct.
Joseph Ambroz, 78, was indicted last year by a grand jury in Saunders County for the 1969 murder of 17-year-old Mary Kay Heese in Wahoo. The girl was found stabbed to death in a ditch a few miles outside of town the morning after her parents reported her missing when she failed to return home from school.
At a brief hearing on Monday, Saunders County District Court Judge Christina Marroquin set another hearing for July 31 to allow for time to review the extensive grand jury record and exhibits…