What about the bit where Colin referred to June when he'd said he'd have done it himself ( killed June ) ?It's in his book as he speaks about her behaviour toward the twins making them pray at every given opportunity.
Are you really suggesting that you believe Colin to have been capable of murder? I heard, and read, that he was as angry with June, as would any parent have been when they felt a grandparent had acted in a way they found unacceptable. "I could have killed.........." is little more than a throwaway line used to describe our disapproval or anger.