One of my good friends we will call him D is also the son of FMIL's best friend. We are inviting best friend and her husband and D and his FI and best friends daughter L. L has a BF J who has gotten physically violent with D the last few times they have seen each other and and now D refuses to be in the same room as J and I don't blame him. I do not want another altercation at my wedding. I am hoping L and J break up by the time I need to send out invites so this whole thing solves itself but just in case they do not since J has been violent towards a guest in the past and can pose violence if invited to the wedding I do not need it invite him right? I really wish I did not have to invite L so there would be no dilemma but FPIL are helping fund the wedding and since we are already inviting D FMIL asked that L be invited too.