original videotape; shows prep. in basement before during & after shooting, incl. Sgt. Pat Dean int.view Armored truck backs into Dallas City Jail; shots of open truck; reporters waiting in basement; Oswald escorted in and shot by Ruby; French reporter Francois Pelou; Captain Arnett says suspect apprehended, mistaken for Secret Service; Nelson Benton and Bob Huffaker reporting; Sgt. Patrick Dean interview