It was a strange and dirty house.
A beat-up boarding house in a bad part of town. And yet a historical picture was taken in its backyard.
A picture of a man intent on killing the President. Holding a rifle and a newspaper.
This morning - almost 50 years later - I stood in that Dallas backyard and snapped a pic. Same dirty house. Same cruddy neighborhood. Same tragic remembrance.
It was a visit to an ugly side of history - a reminder that the deranged thoughts of a very disturbed and invisible person can change the vision of history through one simple and violent act.