ETA further: I heard a theory last night at dinner, when this was being discussed. I'm not sure if it sprang from the dad's rights groups or if they latched onto it, but what is floating around as "fact" among what seems to be a large number of people, is that NC was trying to set BC up to take a fall for domestic violence to gain leverage in her divorce. She was assisted by friends, it went horribly wrong and she is actually responsible for her own death - the friends who helped are now trying to cover it up and have a vested interest in BC taking the fall.
From a sociological standpoint I am amused watching people contort themselves into coming up with some other reason for the murder, other than the obvious one (you know, that BC actually did it).
There's the "he's really smart and that Google search on his work computer was a dumb thing to do, so he couldn't have been that stupid, and thus he couldn't have done that search" reason folks. That pisses some people off that a smart guy could leave any evidence of his activities, and they can't be pissed at BC, so it had to have been planted.
There's the "Okay maybe he did that Google search but 41 seconds wasn't long enough to prove anything, so even though it's actually real, it doesn't mean he killed her" folks. And when you ask, "well how long is long enough?" they don't have an answer to that. Whatever the magic amount of time is, it cannot implicate Brad. A few folks think BC did Google the area, but he was mistaken about where he was looking so it was a mistake that he ended up zooming into Brittaby Ct where his wife's body was dumped the next day. He was really just looking for his own house and (oops), he got it wrong.
There's the "wild conspiracy" folks in which Brad was setup by <pick one or maybe pick two> the government, NC's friends, van-driving-hispanics, a guy she had a one night stand with 3 yrs before, law enforcement, a former girlfriend, NC's family. The conspiracy can never include the option that Brad committed a murder.
Yes, NC's phone got erased. That means LE didn't get any info off her phone either. Whatever information they got is from AT&T records. Don't you think LE would have wanted the phone info as well? Doh! They screwed that one up. It's something that should not have happened. But why does that mean Brad is automatically innocent and he should go free because a piece of evidence isn't available for anyone? It doesn't work that way.