debra newell had accepted the reality that her husband john meehan was a dangerous con man.or annulment and was hiding in fear for her lives and that of her children. her daughter saw him lurking outside their home. he came prepared. but here's keith with more on the conclusion and dirty john. >> a 14-year-old was returned home from her junior life gard training chen she heard a woman screaming out of the parking lot of her newport beach building. >> i never heard a scream like that before. >> most would dive under the covers and say, i hope that stops. >> once i heard that, i knew what i had to do. >> she raced to the parking lot. her mother called 911. >> she said she heard someone screaming. >> we have officers on the way with lights and siren sirens. someone saw blood? >> i don't know. she heard screaming. >> i saw everything going on. i saw him actually stab her. >> that woman being stabbed was tara who with her dog cash had just stepped out of her car to find someone waiting. dirty john. >> he said, do you remember me. he looked me right in the eyes. >> there was no pa