Family and friends gather in front of a display dedicated to fallen Marines at a memorial service aboard Marine Corps Air Station Camp Pendleton, California, June 3. The ceremony honored six Marines killed in a UH-1Y helicopter crash while conducting relief efforts in Nepal. - Family and friends gather in front of a display dedicated to fallen Marines at a memorial service aboard Marine Corps Air Station Camp Pendleton, California, June 3. The ceremony honored six Marines killed in a UH-1Y helicopter crash while conducting relief efforts in Nepal.