The matter has come to light after the death of a 21-year-old college student from Minnesota, Joshua Oukrop, with a genetic heart disease. Guidant acknowledges that his device, known as a defibrillator, short-circuited. The young man was in Moab, Utah, on a spring break bicycling trip in March with his girlfriend when he complained of fatigue. He then fell to the ground and died of cardiac arrest.