>>27165226
Very simple. Consider the following:
Jessica had an incredibly harsh upbringing and was told the entire time it was so she'd make a good family head. She got the shit beaten out of her over this to the point it resulted in histrionic tics like pretending to have asthma so someone would care about her. For better or worse, like Natsuhi, she feels pretty seriously about Ushiromiya family honor.
Now consider that she finds out that:
1) she was never going to be the family head
2) her fucking MAID was the family head THE ENTIRE TIME
3) everybody knew about this as they beat the shit out of her telling her it's so she could be the family head
4) everyone, even her closest family, is okay with the above
5) There is, in fact, a character conflict innately present in Jessica's writing and never openly represented, considering SHE KNOWS KINZO IS DEAD
Jessica is, of course, not Beatrice, but that's not the point here. If Agatha Christie wrote Umineko, Jessica would be the culprit easy. The motive is hidden in the shadow under the candle-stick, and you are blinded by the 'truth'. We have several statements in red that Jessica is not a murderer, but she has multi-layered motive to hate the shit out of Shannon/Beatrice.
She took everything from Jessica and she thinks it's a motherfucking game.
The best part: If Shkanontrice is true, the truth should make Jessica snap much, much harder.