Richard "Dick" Marcinko (born November 21, 1940 in Lansford, Pennsylvania), is a former United States Navy SEAL and author. He has been known by several nicknames, such as "Rogue Warrior", "Demo Dick","Shark Man of the Delta" and "The Geek".
You can check out his website at DickMarcinko.com.
This article is a stub and needs expanding. Please expand it!