Warren Blackstern

Warren Blackstern (AKA "Old Retiree") was a man.
==Biography==
===Pre-Series===
Not much was revealed about Blackstern's life except for the fact that he became a grandfather in his later years.
Some time prior to "The Fifth Man", Blackstern joined a group codenamed "Navy Bravo 1" which was tasked with figuring out the strengths and weaknesses of "Operation Wide Awake", a potential new terrorist attack warning system that Doctor Oliver Mathers had created.
===NCIS: Los Angeles Season 4===
==Personality==
==Physical Appearance==
Category:Americans in NCIS: Los Angeles
Category:One-Off NCIS: Los Angeles Characters
Category:Civilians in NCIS: Los Angeles
Category:Murder Victims in NCIS: Los Angeles
Category:Deceased