This is a tough call for me. I see how the circumstantial evidence adds up to MF as the murderer, and especially find her convos/texts with Rusty as huge red flags.
On the other hand, no gun, no blood other than a few drops in the house (not enough for someone shot 2x with a gun though), suspicious acting son...I am not sure I could find her guilty after all evidence presented.
Prosecutor did show all the insurance policies GF had and she was a beneficiary under all of them, along with his 401k, which was substantial, so enough for motive for sure.