mr. mcpherson gives an illustrated talk in washington, but first, we visit sheridan circle with the author to see where the crime took place and the memorial there for the two victims. >> so, we are literally at the scene of the crime. this is a memorial that was put here by the institute for policy studies to memorialize the assassination of orlando letelier. at the same time, ronni moffitt, a u.s. citizen, was killed. all of this happened on embassy road and washington, d.c. on that morning, september 21, 1976, orlando letelier was an employee of a think tank in washington called the institute of policy studies. he was driving his car to work. he lived in that direction. he came down embassy row, massachusetts avenue, lined with several embassies. in the car with him were runnin -- ronni moffitt and her husband michael. they turned the corner here and unbeknownst to them, following them was a great sit in. in that great sedan were two cuban-americans who had helped put a bomb underneath the driver seat -- the driver's seat in the chevelle orlando letelier was driving. the order was given