Sometimes after you've had hard week it doesn't take much to push you over the edge. Someone can innocently say the wrong thing and you burst into tears. You occasionally read about cases like this in the papers. The police find some poor soul with his toe in the electric socket. Who knows what had happened to make him snap.
Life gets to be a bit too much and folks find a way to escape.
And at the end of this road was a mad religious fanatic who had the unique ability to creep into my brain. Seven other searching individuals, witness to Walt's astounding actions, are touched by His message.