Hi John,
Ask your awesome friend to tell you about how he expects - no - PRAYS FOR the destruction of more than 90% of the people on earth, including you.
Your JW friend believes that since the year 1914 we have been living in "the time of the end," and that real soon now, god will bring the Battle of Armageddon to cleanse the earth of wickedness. Armageddon will not be a war between nations, but a supernatural event directed by God. Billions now living will be toast according to JW theology.
It's called "THE GOOD NEWS."
If he is really your friend he'll be a little uncomfortable and will try to waffle and evade your question. Persevere! Ask him WHO will be saved, and WHAT you must do to live through the battle of Armageddon.
If he tells you that other religious people will survive Armageddon, do him a favor - ask him WHY then he chooses to be a JW, if they don't have an exclusive on salvation. You may just save his life.