VIDEO : Vin Diesel Posts Tribute to Paul Walker on 2-Year Anniversary of Death

Fast and Furious costars Vin Diesel and Paul Walker were as close as actual brothers until Walker was involved in a fatal car crash in 2013. Monday marked the two-year anniversary of Walker's death, and Diesel shared a bittersweet Instagram photo to pay tribute to his friend. The photo featured the two actors sitting next to one another, with "Brotherhood has no limits" and "FastFam" superimposed.