how did ochoa die in boots netflix

Ochoa in the Netflix series "Boots" dies from a heart attack triggered by a combination of factors. He was secretly struggling with an illness and was under extreme mental and physical stress during boot camp. After winning a shooting competition that earned him a phone call home, he is devastated to learn that his wife had been unfaithful and had moved on with another man. This betrayal causes him a severe emotional breakdown, leading to a confrontation with a sergeant and ultimately a fatal heart attack. His death is framed as the tragic result of both personal heartbreak and the harsh pressures of military training, with the official explanation citing a hidden medical heart issue as the cause.