My guess is that it is Eve seeking revenge on Ben for killing her daughter. But who actually made the bomb and planted it in the church for her? Is it another character or just some random bomb maker she found? She was also probably behind the nail polish on the dress, missing ring and spiked drink. if it is Eve, she’s setting up her friend Claire to take the blame. She used to be a "mother" figure or mentor for Claire with her singing career.
Or Eve drugged Claire to do these things and she doesn’t remember. However, drugging is DeMera thing, not Eve’s go to revenge. I don’t think Eduardo would be involved with the bomb since his son and daughter were at the wedding. Gabi was a last minute guest but not Rafe
that Eve and Eduardo would be coming back aroung the same time. Also, it looked like Ben was hurt in a collapse of the bomb but I’d also read that he’s going to be held by Eve and/or Eduardo. They want to torment him. Alsohe damage from the bomb seemed to be in the vestabule of the church. T