Zero sympathy
If the accused is guilty, I have zero sympathy for them, irrespective of the sentence or their reactions to the possibility of it. Saying "sorry" doesn't make it all right, and shouldn't IMO have any effect on the severity of the sentencing. The victims lives have been negatively affected forever. And, if guilty, the accused has committed an offence in the UK, that of non-consensual voyeurism. That the victims were abroad has no bearing on the matter, so far as I am aware. I've no idea regarding the correct jurisdiction to try him issue. However, one of the things that has long annoyed me about UK law is that crimes against the person seem to attract lesser sentences than financial crimes, which I find an ethically loathsome state of affairs.