And unless you've been in a situation where you've witnessed active CPR and the use of an AED there's no way to prepare for seeing it the first time. It's violent and scary, I feel really bad for those guys having to watch it happen to their brother, thank God they started compressions quickly. If you have an opportunity, learn CPR and how to use an AED. Love to all my bills family, still feeling pretty numb. Praying for damar