Ending an odd, deadly week in the nation's capital, the man who set himself on fire at the National Mall in Washington on Friday has died, Washington police announced Saturday.

Per the Associated Press, D.C. police spokesperson Araz Alali confirmed the unknown man died at the MedStar Washington Hospital Center Friday evening because of injuries related to the fire. On Friday, multiple eyewitnesses said the man doused himself with gasoline before lighting himself on fire in the middle of Washington's National Mall. People jogging nearby rushed to put out the fire with their shirts. Officials rushed the man to a local MedStar Washington Hospital Center, saying he had "life threatening" injuries. 

Police still have no idea who the man is or why he did what he did. Alali said his injuries were so bad police were going to use DNA and dental samples to determine his identity. Lt. Pamela Smith of the U.S. Park Police also said they don't know the man's possible motive yet, but confirmed they were investigating.