"Let's back up a little." People keep referring to Jodi's computer-hacking skills. If it's true that Travis ever did in a moment of weakness give her any of his passwords, he surely must have changed them later. So how, actually, did Jodi get into his texts, email, Facebook, bank, and whatever else she apparently did get into? She may be smart in a diabolical kind of way, but she's no computer whiz and technology has advanced considerably since her early days snooping on Bobby on the Yreka library computer.
So did she just look up "hack computer" on Google? (And "major arteries," "self-representation," "TV make-up tips," "how to sound like a Mormon," etc, etc, etc?)
I would be surprised if the reason she smashed her hard drive was wasn't because she looked up things related to hacking and murder.