mulder called two doctors. one who said she was suffering from traumatic amnesia, and another who thought darlie's wounds had not been self-inflicted. they also focused on the 911 call from the night of the murders. >> they just stabbed me. >> the 911 tape, when i heard it, i was very convinced that she was a hysterical mother. but all of a sudden, darlie was worried about touching a knife. >> there's a knife? don't touch anything. >> i already touched it. >> it's okay. it's all right. >> what grieving mother would even think of that. she went from being a victim in their eyes to a murderer of two little children. >> finally, prosecutors showed the jury a news report shot eight days after the slayings. ♪ happy birthday to you