The acclaimed filmmaker was taken off life support on Monday after falling into a coma 13 days ago.
It appears that John Singleton's stroke last week was a lot more serious than previously reported.
Director John Singleton has backed out of the Tupac biopic due to creative differences, with Carl Franklin reportedly replacing him.
The Boyz N the Hood director will write the screenplay, with shooting scheduled to start in June.
The filmmaker is seeking $20 million from the studio for failing to move forward on his two-picture producing deal.
The Boyz 'N the Hood director wants to direct the film based on the influential gangsta rap group.
He will direct from a Jay Longino and Michael Browning action script.
The Taylor Lautner film is set to start filming this summer.