Gawain.
I believe he thought the ends justified the means.
Thank you for that. The last thing I'd want is for her to grow up alone and feel the need to have to fight them herself.
I suppose there's that. Feigning ridiculousness helped me fly under the radar up until this point, but that particular jig is up.
I don't know if it helps anything, but there were two Death Eaters at mine as well, but I don't think either of them were Montague, despite the house burning.