I'm wondering if Finn has opted to wait until the wedding is over etc and then he thinks he'll get his mom to talk to Ross & Pete about what happened.
Ross had has his own doubts because let's face it his own mother tried to kill him as a child and once he finds out he's the one who won't believe it was an accident, as Finn seems to have accepted for now that his Dad purely fell. I think Ross might end up being the one who says he doesn't believe he just fell and will say Emma pushed James.
Maybe they'll take a trip to the bridge to try and understand what their mom says happened and think the bridge was too high for James to just 'fall' over and realise the only way he could've got over the bridge is if he was pushed.
Maybe they'll end up pushing Emma over the bridge to demonstrate their point.....🤞🏼😂