This mural is by the Community Rejuvenation Project and is located on San Pablo by Qilombo and Afrikatown in Ghosttown. It was painted in November, 2015.
The mural reads "All Power to the People," "Black to Africa." It features Assata Shakur,Thomas Sankara, and Amed Sekou Toure. In between the figures the text reads "We have the right to exist... We have the right to survive... We have the right to thrive... There are no throw away people!"
You can read more about the creation of the mural here: