Sad. Since there's no details, the likely causes include HCM, aortic dissection (Marfan syndrome) and vfib. AED availability, doppler ultrasound and Marfan scr

Sad. Since there's no details, the likely causes include HCM, aortic dissection (Marfan syndrome) and vfib. AED availability, doppler ultrasound and Marfan screening can be life-saving. It's important to do autopsies and publicly or anonymously release cause(s) of death in an effort to prevent deaths of others.