Eduardo Ochoa died in the Netflix series "Boots" due to a preexisting heart condition that he had concealed from the U.S. Marine Corps when he enlisted. In Episode 5, Ochoa collapses after enduring severe physical and emotional stress. The emotional turmoil begins when he calls home and discovers his wife Gloria is cheating on him, which deeply affects him. Despite experiencing chest pains earlier, Ochoa ignored them. Then, after being harshly pushed by his drill sergeant as punishment, the combined heartbreak, exhaustion, and his hidden congenital heart condition cause his heart to fail, leading to his death. Attempts at CPR were unsuccessful, and the cause of death was revealed in Episode 6 by Sergeant McKinnon. His death marks a somber and pivotal moment in the series, shifting the narrative to focus more on the recruits’ interpersonal relationships and the serious nature of their challenges.