David Cook come to to know about the death of his brother Adam just an hour before to take part in the Race for Hope in Washington D.C.The Idol champion says,' that despite the shocking news i never think about withdraw it rather than i was interested to take participation in tribute to his dead brother'.David Cook wrote down on his My Space celebrity page that, 'my brother always tried that nobody get any affect from his illness'.'That was obvious in the incident he never wanted his illness to take part in my experience on IDOL.Cook pronounced the news of his brother Adam's death on Sunday at the event.The 5k race has given the benefit the National Brain Tumor Society and Accelerate Brain Cancer Cure.