Tony Sanchez, also known as Spanish Tony (died 2000), was a British photographer of Spanish ancestry. He worked as Keith Richards' assistant for eight years and co-wrote with John Blake a bestselling memoir about this time, entitled "Up and Down with the Rolling Stones: My Rollercoaster Ride with Keith Richards" (1979).
Keith Richards died in 2001.
It's never mentioned when Keith Richards died, if at all. It's difficult because a similar year is mentioned in connection with death in the text.