Thefailureof thefamilybusinesswas thedeathof him.
Thatchildwill bethedeathof me(= is always doing something whichupsetsme)!
Ihonestlythinkthestressof thesituationwill be thedeathof her.
He always said that theinternetwould be thedeathof therecordindustry.
Theintroductionof therefrigeratorwas thedeathof theold-fashionedlarder.