The head of a private investigative team in Washington, D.C., trying to solve the murder of Democratic National Committee staffer Seth Rich insists that officials with the Metropolitan Police Department – in collusion with the mayor – are withholding key evidence from the public and obstructing the investigation for political purposes. Jack Burkman, the head of the Profiling Project investigative team, said police are no longer cooperating with anyone, and he believes they’ve completely stopped the investigation into Rich’s murder. “The police have shut down all full operations,” Burkman told WND. “The police are not cooperating with us or anyone,...