None of us know what goes on behind closed doors in other families. Neighbours and wider family may have seen June as a kind lady, but that does not have to be the truth. I don´t know how she was, but as susan says, Colin had nothing to gain by talking so badly about her, on the contrary, he made himself look bad saying that if Jeremy hadn´t killed June, he would have!!!
Something must have been wrong in that family for the son to have turned into a mass murderer and the daughter mentally ill.
I know that my teachers thought my mother was a intelligent, beautiful, cool, calm collected lady, in fact they were quite in awe of her. They had no idea of the degree of dysfunction going on in our home. My sister and I were good pupils, no problems in school, but we lived through hell at home with a mentally ill mother. No one could tell.