Harsh Times was directed by the film director who is best known for writing which 2001 film?
David Ayer:  He is best known for being the writer of "Training Day" (2001), and the director and writer of "Harsh Times" (2005), "Street Kings" (2008), "End of Watch" (2012), "Sabotage" (2014), "Fury" (2014), and "Suicide Squad" (2016).
i don't know