MIT Media Lab officials tried to hide the center’s philanthropic relationship with Jeffrey Epstein, a convicted sex offender who died by suicide while awaiting trial last month.

The Massachusetts Institute of Technology research center’s ties with the now-dead financier have earned scrutiny since state and federal law enforcement arrested Epstein on child sex trafficking charges in July. New documents and emails obtained by the New Yorker detail how MIT faculty and staff attempted to hide Epstein’s ties with the university’s research.