Sgt. 1st Class John H. Robertson was aboard a Vietnamese Air Force H-34 helicopter on a special operations mission over Laos when it was shot down by enemy ground fire and exploded on May 20, 1968. U.S. servicemen who witnessed the crash say there were no survivors, and his body was never recovered.
In 1976, a military review board changed Robertson's status from "missing in action" to officially deceased; his wife, who later remarried, and two young daughters moved on.
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