When they finish their testimony, the beast that comes up out of the abyss will make war with them, conquer them, and kill them.
References for Revelation 11:7
Their dead bodies will lie in the public square of the great city, which is called, prophetically, Sodom and Egypt, where also their Lord was crucified.
References for Revelation 11:8
And representatives from the peoples, tribes, languages, and nations will view their bodies for three and a half days and not permit their bodies to be put into a tomb.
References for Revelation 11:9
Those who live on the earth will gloat over them and celebrate and send gifts to one another, because these two prophets tormented those who live on the earth.