>> then the unexpected clue. >> that is what broke this case. >> the desperate manhunt. >> command was giving go, go, go. >> right here. >> right there. >> and the search for answers. >> these people had a plan, it's sadistic, horrific. tonight a cnn special report, the dc mansion murders. sunday, may 3rd, near phoenix, arizona, a race day for philip, the 10-year-old son of savvas and amy savopoulos. >> he wall street passionality beyond belief, no matter how he did on track, he would be smiling from ear to ear. >> jay howard was his coach, in his interview he recalls their last race. >> a typical day, we would get up in the morning and go to the track.