All I am saying is that I think the GF is the key to this case.
If what she said under perjury was true, that a creepy guy was following her boyfriend and there was an altercation, the phone went dead and she couldnt reach him again, what did she do afterward? Did she tell anyone, did she try to call around, or was she just hanging out? She must have been OUT OF HER MIND WORRIED is my point. If she wasn't freaking out, why wasn't she? TM didn't have a home number? I find that hard to believe that she didn't reach out to someone afterward. And if she was texting people afterward, there may be evidence that may point to GZ's guilt or innocence before she was aware of what happened. That's all.