What a shame that poor Lily and Luna are so upset, there's no reason for that kid to be doing stuff that disturbs your neighborhood! Have any of your neighbors complained about it?
Sounds a lot like the people next to us. Their kids are constantly screaming, crying, or both at the same time. They often have the music on so loud it's like their stereo is on in my place.
Is there any chance of talking to his parents or maybe filing a noise complaint with the police? Nobody should have to put up with this!
Good luck, I hope this can be resolved very soon. Please give Lily and Luna some comforting lovies from me?