The fact the victim was stabbed/slashed 27+ times, had his throat sliced open ear to ear and was shot in the head legally proves the charge of premeditation. In that 90 seconds Jodi knew she was killing Travis, intended to kill Travis, and kept going to finish the killing, rather than leave him injured but alive. The victim was "overkilled" which is not usually a factor in self-defense, but is often indicative of a rage killing. The perp's actions after the murder, the coverup, the trying to remove evidence from the scene, not reporting the incident, lying repeatedly about it, etc. show consciousness of guilt. In other words, the perp (Jodi) knew she murdered Travis, intended to murder Travis, and then she attempted to cover it up. That is enough to prove first degree (premeditated) murder and is enough to disprove a self-defense killing.