I worked with Justin and that POS David Moffitt. Once we learned Justin had been killed a co-worker said right away it was David. Just a sad/****** up situation.You could make an assumption that maybe she was worried since she was the one that discovered her that they would think she was the main suspect in the case. You can only imagine now with how much more prevalent social media is than it was 15 years ago even how people might perceive that she had to be the killer since there weren't other leads. Just my guess that the whole situation probably stressed her out and if she already had any other kind of prior depression issues this just escalated them.
If anyone has ever watched the Dateline episode of the Justin Michael murder in Grimes it was interesting to see how they were able to figure out who the suspect was in that case. There was a time during the questioning they suspected his girlfriend did it because she wasn't showing much emotion during questioning and had no blood of his on her despite being in the same bed as him when he was shot in the middle of the night. Was almost like they thought she may have done it and was trying to cover it up until they finally started to put some other pieces together and realized who may have done it. I think the episode is on YouTube somewhere, that murder was probably a quarter mile away from where I live so was a bit creepy watching that episode knowing the area the murderer had been scouting in advance.