VIDEO: On Monday, fire officials shared details about paramedic Richard Garner's unexpected death in April and their investigation into the cause. According to officials, Garner completed a 48-hour shift and went to Easter brunch with his friends just before he suffered an acute cardiac arrest that killed him. Officials said that the medical examiner ruled the underlying factor in the heart attack to be hypertensive cardiovascular disease and that the department has been unable to find a clear link between the death and department practices. The department's investigation reached a neutral ruling.