[Note to readers: This survey is anecdotal, the start of a future study]... a doctor of criminology at Birmingham City University has pointed out that there are three distinctive types of mothers that might be more likely to raise a murderer.
Operative words and phrases - "anecdotal"- not based in any sort of formal research whatsoever. "Might be more likely" ... and, of course, might not!
After examining 10 murder cases in the UK series Murderers and their Mothers, Dr Elizabeth Yardley began to demystify the psyche of killers by looking closely at their maternal relations.
TEN! On average, there are around 5,500 people serving life sentences for murder each year in the UK. Ten doesn't really seen like a reasonable sample from which to draw such conclusions, in my opinion.
What about Luke's "unusual" relationship with his mother?
If, by that, you are referring to media claims that he was found sleeping in the same room as his mother, I'd caution that media reports aren't always accurate and even when they are, there can be perfectly innocent explanations for the information published.
For example, some media reports stated they were found sleeping in the same
bedroom. Inaccurate. However, another youth
was sleeping in the same bedroom as his mother at the time, but that youth was Jodi's brother. Unusual relationship? Or devastated family keeping close for comfort.
Luke and his mother were sleeping in the living room - on a couch each on separate walls in the room, because Luke was heavily medicated for shock in the aftermath of Jodi's murder, and Corinne was afraid he might fall down the stairs in the night. Unusual relationship, or sensible, caring and responsible decision in the circumstances?