From a New York Times obit by Clay Risen headlined “Charles J. Ogletree Jr., 70, Dies; at Harvard Law, a Voice for Equal Justice”:

Charles J. Ogletree Jr., a Harvard law professor who helped reframe debates around criminal justice, school desegregation and reparations during the 1990s and 2000s, all the while mentoring a new generation of Black lawyers that included President Barack Obama and Michelle Obama, died at his home in Odenton, Md.

Colette Phillips, a representative of the Ogletree family, said the cause was complications of Alzheimer’s disease. Professor Ogletree was diagnosed with early-onset Alzheimer’s in 2015 and publicly announced his condition a year later.