But instead of being praised for preventing what might have been another Fort Hood massacre, Manion was fired by the contractor that hired him, NiteLines Kuhana LLC. A spokeswoman for the firm says it let Manion go at the Navy's behest. The Navy declined to comment on this story.

Manion says the April incident with the two Marines was just one of a series of disturbing events and serious problems with mental healthcare he saw at Camp Lejeune, a base that may be best known for a water contamination scandal that led to high rates of cancer and birth defects among Marines and their families who lived there. He was particularly concerned to see that troubled Marines were stricken with the overwhelming impulse to commit suicide or murder, telltale signs of severe combat stress.