A sad upbringing for them but they still had the choice of being good citizens and making something of their lives or doing what they did . Plus it was their choice to not go down the naturalisation route as adults when apparently they were warned what could happen .When I read the article earlier it wasnt behind a paywall. Not one to defend the indefensible but if my memory serves me right the article mentions the loss of their mother and after moving in with closes relative, their relative passed away.
Really bad luck, not so much a justification for their crimes but I can appreciate their upbringing was far from stable ( absent father so no strong male figure in their upbringing )
What does leave a bad taste in the mouth is the guardian using pictures of the twins when they were boys - that picture at the top of the article frames it without a word being read. Then again its the guardian.
Far easier to blame social services for not doing it for them when they were children .
Always somebody else's fault with some people .