[1][2][3] On September 15, 2001, four days after the attacks, Biggart's remains were discovered along with a bag containing his three cameras and the CompactFlash card from which his last photographs were recovered.

[1][4][5][6] His photographs from 9/11 were exhibited at the International Center of Photography and the Smithsonian's National Museum of American History.

[1][2] Biggart started out as a commercial photographer[1] and he soon began to pursue an interest in spot news photography.

[4][11] His photojournalism credits are found in the international stories he covered in the West Bank and Israel in 1988,[15][16] Northern Ireland, and the first Gulf War.

[13] His work appeared in The New York Times, The Christian Science Monitor, The Village Voice and The City Sun.

[5][13] On the morning of September 11, 2001, a passing taxi driver alerted Biggart to the fact that a plane had just crashed into the World Trade Center.

[20][21] A "news junkie", according to those who were close to him,[12] Biggart ran to his apartment near Union Square, grabbed three cameras (two film, one digital) and began walking the two miles toward the center,[21] where fire trucks were located,[1] shooting photographs along the way,[21] including digital, color film and slide images.