i have watched and follow this case with much interest since nancy's murder in 2008. I have an interesting perspective as i was the last woman brad dated before nancy. Or rather, probably unbeknownst to nancy, he began dating her while he was still seeing me, which incidentally is a common thing for brad. My heart goes out to nancy's family and yet sometimes, i feel incredibly fortunate to have come so close to escaping a similar fate.
Although the smoking gun has yet to be presented, i have no doubt in my mind that he is guilty. Brad was incredibly narcissistic, unfeeling, cold, calculating, and crossed/undermined many people while i knew him, and was never remorseful. Yes he cheated and lied to me and at the time, was hurt and bitter but in retrospect, i think he was a borderline sociopath. He had 'friends' but was close to none of them; he latched onto current girlfriends social groups on a very superficial level and quickly moved on. The people he called his 'best friends' when we met, told me that he was unreliable, a cheater, cold and calculating, and that i would be better off to not get involved with him. They were right, and not long after brad and i stopped dating, he also moved on to an entire new group of friends as he had used up any remaining goodwill.
He gave every one of my friends a 'creep' vibe. Fortunately, he was a 'rebound' boyfriend so i knew it wasn't meant to last regardless. He is absolutely capable of manipulating mobile/telephone calls (and retrieving call history on his phone) - he bragged to me about his telephony talents on a few occasions and at the time i worked for a large telecommunications company.
It's late and i could write more, but young children aren't very understanding of mom's late nights on websleuths.