Donna Summer believed her cancer was linked to 9/11 dust

As the world continues to remember Donna Summer, who died on Thursday, it's being widely reported that the Disco Queen believed the 2001 attack on the World Trade Center triggered the lung cancer that took her life, especially as members of Summer's family have confirmed the singer did not smoke. Summer, then 52, was in her New York apartment when the towers fell and rained harmful particles on the city below, including asbestos, lead and mercury. About 1,000 people who were witnesses to 9/11 have died since being exposed to the dust; more than a third were reportedly lost to cancer.