I read somewhere that Kirby Brown's family stated in interviews that she was very fit and competed in sporting events. So this looks interesting as there is probably little evidence of some pre-existing illness behind her death.

One of the articles reports that in similar events held previously, people fell ill. So it will be interesting see what caused the illness on other occasions.

I am not sure it was proper to state that people had passed away out of their own choice. During such tragic events any statement should be avoided until the investigations are over and formal conclusions are drawn.

OBE's are safe as people always "come back into their bodies using a connection to a virtual umbelic cord".