Mercy, Mercy Me: The Art, Loves and Demons of Marvin Gaye, by Michael Eric Dyson (2004)
Rather than attempting another complete biography, Dyson focuses on Gaye's passions and demons, putting them in the cultural context of the times, and of Dyson's own childhood.
Divided Soul: The Life of Marvin Gaye, by David Ritz (2003)
This is considered to be the definitive record, at least so far, of Marvin Gaye's enigmatic life.