Denzel Washington is gracing the cover of the October issue of “GQ” Magazine. The 57-year-old actor has been laying low recently, as he films his new movie in New Orleans, entitled, “2 Guns” with Mark Wahlberg. Inside the issue, Denzel Washington also gave his thoughts on the tragic end to Whitney Houston’s life, and how Samuel L. Jackson also battled with addiction. Read more after the jump Quay