http://www.readthehook.com/67132/morgans-killer-fairfax-case-connection-offers-hope-fresh-fear
I find this "passerby" very confusing. In the comprehensive "Read the Hook" article it says 3 things:
1) "Startled by a passerby, the assailant fled on foot."
2) '...the woman told them her assailant had choked her until she lost consciousness. "She thought she was going to die, then all of a sudden, she came to, and he wasn't there," says Jenkins, mentioning the passerby who scared the attacker away–- perhaps in the nick of time."
3) "With only one eyewitness, the rape victim, in the 2005 Fairfax assault..."
So if there is only one eyewitness (the victim) who passed out and awoke after JM left, then just who exactly reported this passerby who scared him off (without actually witnessing anything)? Was this just an assumption made by the victim who must have been praying someone would stumble upon the scene and save her? The only other thing that makes sense is if the victim passed out AFTER seeing someone walking toward them. I am guessing there was no passerby in reality, and JM actually finished his deed, thought she was dead and took off.