Any theory or possible scenario needs to account for the texts that were confirmed to be sent from KB's phone after she left the bar (one that she "made it home safely"). Remember KB's phone has never been found and it is thought that KB never got back to her apartment that night.
- If a random rapist got ahold of KB after she left the bar, and that person is not NH, then where did the attack happen?
- Did the other rapes in the area involve taking the victim in a car somewhere?
- Were any of the other victims missing after their attack?
- Did any of the other victims send text messages immediately before their attacks? Are their cell phones missing?
To say KB's case resembles other area rapes implies what happened to KB is known and also implies that what happened during these other assaults resulted in a missing or dead person, missing cell phone and communicating, for some reason, they made it home safely.
If you believe KB did make it home to her apartment and you believe she is the one who sent that text, then the scenario has to account for her leaving her apartment again, because she wasn't attacked in her apartment. If you believe the attacker is the one who sent the text on KB's phone, the scenario needs to explain why -- what's in it for the attacker? Random rapist not known to be with KB, specifically--what would be his need to send a txt message on KB's phone?