This may seem obvious to you, but it certainly isn't to me. You are right that natural deaths are unlikely to be affected, but it's entirely possible for other

This may seem obvious to you, but it certainly isn't to me. You are right that natural deaths are unlikely to be affected, but it's entirely possible for other kinds of death to be affected (e.g. if I can't shoot you I may stab you to death). The appropriate category to compare would be violent deaths.