Three Ground Zero firemen die of cancer on same day

Lt Howard Bischoff, 58, and firefighters Robert Leaver, 56, and Daniel Heglund, 58, died within hours of one another on Monday.
Heglund died just one day before his 59th birthday. Bischoff and Leaver grew up together in Brooklyn and were childhood friends. More than 2,500 New York police, firefighters, ambulance and sanitation workers have contracted diseases since the day of the attack.