Ebayqueen It must be lonely up there on the moral high ground. Addiction can happen in the 'nicest' families, as can alcohol addiction, depression, mental illness and substance abuse. There are many on here who have suffered with this in their family and will assure you that not one of their children or grandchildren 'chose' the lifestyle.
On the assumption that the original 'hit' was a professional one, I agree that the remainder was unlikely to be left somewhere it could be found and identified and possibly used to trace, through cctv etc just who put it there. I do wonder if this was deliberate, to cause unrest and unease, let's face it, if another episode of poisoning occurs in say, Bolton, or Doncaster, or Cardiff, people are going to be frightened to go anywhere and the effect on the local economies, as we know from reports from Salisbury, can be catastrophic. Could this be an especially nasty fear and economy attack from Putin? Seems far fetched, but so does bumping off ex-agents in such a public way.