Manfred von Karma is a Jerk
I was thinking about the timing of von Karma's attempt to frame Edgeworth for murder. Now, obviously, it makes a lot of sense to have done it when he did, due to the anniversary of Gregory's death and the fact that the statute of limitations was due to run out that year. But I can't help but feel like there's more to it than that.
The date was definitely significant, and it was probably the entire reason von Karma acted when he did. von Karma's greatest weakness was his narcissism that he would be able to convince Edgeworth to confess to his “crime,” and that no one would ever find him out. Had he been content to just convict Edgeworth, then Hammond's death should have been enough, and that could have happened any day, any year. Getting him to confess to DL-6 was probably the back up plan, should someone actually be able to see through the Hammond murder. He was trusting someone else to carry out his instructions, after all; he couldn't ensure that it would be done perfectly. Doing it on the last possible day Gregory's murder could be tried ensured no one would be able to poke around the investigation files or figure anything out.
So I'm not arguing against any of that. If he was going to get Edgeworth to confess, there was literally no other time to do it. However, that doesn't mean there couldn't be further motivation.
Consider: fewer than three months before Turnabout Goodbyes, Miles Edgeworth lost his first case. Ever.
Fewer than three months before von Karma implicated Edgeworth for murder, Phoenix destroyed Edgeworth's perfect win record.
And what happens when a von Karma loses their perfect win record? Franziska tells us in Farewell, My Turnabout that they are no longer worthy to carry the von Karma name.






