9/11, One Day in America shares stories of survivors and witnesses, some of which have never been told before. Here, The Telegraph spoke exclusively to four of those people whose lives were forever changed that morning, from the banker who survived by digging himself out of 40ft of rubble to the paramedic that saved the life of Deborah St.
John, one of the most seriously injured survivors. Here are their stories. A 21-year-old paramedic at the time, Frank Puma arrived at the scene and saw the buildings come down.
He saved the life of Deborah St. John, known as one of the first in and last out of hospital I was 21 and working as a paramedic.
Read more on telegraph.co.uk