He's been charged with only one count of child sex abuse. That's horrible in itself, but if there's thousands of files and only one count? Someone else is involved. We know someone else has been named as person of interest. If that person is arrested, they both are sick psychos.
As for Meghan and Harry, they are done. This is why Senior moved into a dementia care unit. He'll claim he has memory of what he did....the truth or not.