A rather unusual account by a BBC reporter, embedded with the Metropolitan Police for a documentary, who attends an incident where a teenager has been stabbed and dies as help is given:http://www.telegraph.co.uk/news/ukne...t-moments.html

The terrible sound of his last breaths bubbling out through his stab wounds as police officers tried to save his life is something I will never be able to forget. He was just 17.
I think it fits here, although not in 100% accordance with Bill's opening post.