Who is Jordan's attacker? It is not Gil. Why would a radio DJ attack her? It is definitely someone following the case as most murderers do. It also seems too convenient to be Manny. Although that would be a qualified guess. I doubt it was Terrance either because he seems like a low rate con man. So it does not seem too likely it was either Terrance or Manny because it foes not seem they have the investigation skills to find out where Jordan lives and thus be clever enough to break into her secured building undetected. although there was somebody earlier Jordan thought was following her days/weeks ago. Perhaps this person has been watching her for a while? Then she did mention how people "sneak" in by pushing their way into the garage behind someone using their key Fob.
For some reason I think it is law enforcement. I don't think it's Fawcett he seems too old to make this attack and Jordan would have probably recognized the voice. It could be someone hired but their words before and during the attack seems too personal.
