Not to be cruel or to say that these people deserved what happened to them, but this sort of feels a bit like karmic punishment for having twelve groomsmen and eight bridesmaids at your wedding.
Also, who poses for wedding photos on a pier? Have they never seen an episode of You've Been Framed? Also also, credit where it's due to that bridesmaid on the end who was out of their like a shot when sh*t started to go down. That girl knows what's up.