Das died on September 19, according to an obituary posted to the Hartford Courant‘s website. The obituary does not give a cause of death.
Part of Das’s June 2010 response disputing UConn’s investigation — which eventually found him guilty of 145 counts of fabrication and falsification — was to say that he had suffered a stroke because of the stress.
Das lost his tenured professorship at UConn last year. The Connecticut Mirror notes that he had filed a lawsuit against the university earlier this year.