I've been re-reading the transcripts, and MR has a different last name than his mother and brother. <modsnip> We know that MR lived with his aunt and uncle during middle school. I get the impression that he was not only troubled, but possibly neglected. I wonder if his mom put up with him when he moved in with her in 2008 because she felt some guilt over his unstable upbringing. The live-in boyfriend of MR's mother testified that he moved out because MR was taking advantage of his mother. MR may have treated his mother like she owed him something and perhaps he treated other women like that as well ... perhaps he was able to manipulate his mother into giving him what he wanted and he then used that strategy with women he met on dating websites.