General is most senior Army officer to kill self

I don't remember him. I have heard of him, however.

PFC William Tarbush -
Jeremy Michael Boorda (November 26, 1939 – May 16, 1996) was a United States Navy admiral who served as the 25th Chief of Naval Operations. Boorda is notable for being the first American sailor to have risen through the enlisted ranks to become the Chief of Naval Operations, the highest-ranking billet in the U.S. Navy.

Boorda, a Vietnam War veteran, died in May 1996, at the age of 56, when he committed suicide by shooting himself in the chest. The reason for his suicide was reportedly that he was upset about a media investigation into the legitimacy of his having worn on his uniform two service ribbons with bronze "V" (valor) devices which were generally perceived to indicate heroism in combat. Boorda had earned the two medals during the war represented by the ribbons, but there were questions about whether the two devices on the decorations were authorized. Although Boorda participated in combat situations off the coast of Vietnam and had been given permission to wear the devices, it was determined before and after he died, that he did not meet the Navy's combat requirements to wear the devices. Boorda had removed the two ribbon devices on his uniform almost a year before he died and was generally perceived as having made a good faith error in believing he was authorized to wear the devices, as opposed to an intentional effort to be deceptive.