[Margaret Pilkington]

This man was, and still is(to a lesser degree) mentally ill.
He has been seen by qualified psychiatrists who considered that at the time he committed the dreadful act, he was not sane.
He will live with the results of his actions for the rest of his life, namely the loss of his family.
If we are to believe all we read about this case, then maybe his wife should shoulder some of the responsibility. She was going to leave him and had told him that the marriage was over....so why take him to a foreign country, where there would be no family support network for him. He had had a past history of depression, two brothers having committed suicide, and his grandmother having died just a month earlier.
My great goodnight, this is enough to push the sanest of us over the edge.