Suzy's best friend dies in a drowning accident. She is convinced that the true cause of the tragedy must have been a rare jellyfish sting. Things don't just happen for no reason. Retreating into a silent world of imagination, she crafts a plan to prove her theory. She tries traveling the globe, alone.
I believe what he meant was that his belief in god was dead and that god to him was dead. Just like how many Jews were dying so was their hopes and beliefs due to their circumstances they were facing at the time.