06/03/2010 11:25 am ET Updated May 25, 2011

BP Building 503 In Naperville, Now Destroyed, Gave Dozens Of Workers Brain Tumors

In recent weeks, BP demolished Building 503 of its Naperville research campus where at least six former chemical researchers of what was then Amoco Corp. developed a deadly form of brain cancer in the 1980s and 1990s.

Researchers who conducted a three-year study of the cancer cluster concluded those six cases of glioma probably were workplace-related. Yet the scientists never could identify the source of the workers' ailments.

Read more on Chicago Tribune