Regarding adoption I don't believe it greatly influenced Bamber's decision. Except to make it easier for him knowing he was not a blood relation.
There have been a lot of other inheritance killings where the killer had not been adopted.
There's no reason why an adult who has grown up with non-biological parents will think any less of his/her non-biological parents than adults who grew up with birth parents providing the non-biological parents were loving and supportive towards their non-biological child. And yet I can see perhaps at JB's trial how some were maybe prejudiced against JB on the basis he was the adopted son even if maybe they were not consciously aware of such.
The inheritance motive was/is simply a theory put forward to explain the murders which IMO lacks substance.
Other cases involving so-called inheritance killers the jury had to decide whether or not the accused murdered to fast-forward his/her inheritance or whether there was some other explanation. In JB's case the jury had a clear choice JB or SC.
32 years on from JB's trial and far more is now known about the effects of severe maternal depression and neglect on the brains and biological systems of infants in the care of mothers/caregivers suffering severe depression. This puts the infant at risk of attachment trauma and a 'disorganised attachment' style in adulthood. This new science renders trial testimony from Dr Ferguson and Dr Bradly largely obsolete.
All the science underpinning attachment points to SC suffereing attachment trauma due to June's mental health issues during critical periods of SC's development.
Dr Ferguson told the court he did not regard SC at risk of suicide or capable of harming herself or others. This was on the basis he diagnosed SC suffering from paranoid schizophrenia. If SC was a paranoid schizophrenic all the evidence also supports her suffering attachment trauma which if left untreated leaves such individuals at risk of suicide and committing acts of violence.
Dr Dan Siegal explains how individuals suffering disorganised attachments are most at risk of losing control and committing acts of violence:
http://www.drdansiegel.com/about/biography/https://www.youtube.com/watch?v=WkEcpBU3TpEDr Allan Schore explains attachment trauma, the roots of suicide and the effect of early attachment on brain development and how an infant's cognitive structure is effected by a mother's depression:
http://www.allanschore.com/bio.phphttps://www.psychalive.org/video-dr-allan-schore-attachment-trauma-effects-neglect-abuse-brain-development/https://www.psychalive.org/video-dr-allan-schore-roots-suicide-early-attachment/https://www.psychalive.org/video-dr-allan-schore-explains-infants-cognitive-structure-effected-mothers-depression/The following study led by Prof Barone has shown that mothers with disorganised/helpless/entangled attachment styles are more likely to commit filicide than mentally ill mothers:
https://www.laviniabarone.com/home-2https://www.sciencedirect.com/science/article/pii/S0145213414001458The above will obviously make for a very compelling appeal point at JB's next hearing.
Just to say we all have adult attachment styles. Hopefully 'secure' ones! Here's a questionnaire for those interested in determining their own adult attachment style:
https://www.psychologytoday.com/tests/relationships/relationship-attachment-style-test
