VIDEO : Vin Diesel Pays Tribute to Paul Walker on Instagram While Working On Fast & Furious 8

Production on the eighth installment of the Fast & Furious franchise has begun and for the first time, the franchise stars have returned to the set and are missing one of their brightest for the entire production. Paul Walker, who was lost in a car accident in 2013, may not be on the set physically but he is most certainly there in spirit. His long time friend and brother by all things but blood, Vin Diesel, keeps Walker's memory very much alive while on set and promoting the Fast & Furious movies. Fast 8 is being directed by F. Gary Gray and is written by Chris Morgan and Gary Scott Thompson.