I like the show, but I can't keep track so far of everyone's names. LOL.
My thought is that Abby is the killer, first, because her mom was killed by the original killer & second because she has always been in love with the groom & he has never returned that love, so she is there to ruin the wedding.
Also, someone else posted on the previous page about the psycho flower girl's dad sleeping through her & the mom talking. My husband has not only slept through that, he slept through our son climbing over him to get into our bed. So it's totally possible!