CREDIT: AP Photo/New York Times, Richard Perry Pool Discussion about just how Michael Brown died was revived this week after a new gunshot residue analysis and autopsy leaked to the press provided more information about the crime scene. But a psychiatrist who was honored last year by the White House and serves on the board of a prominent anti-marijuana group seized instead on the full results of the toxicology report to argue there is another contributing cause of Brown’s death: marijuana.