I know this much Dirk. If I'm wrong, I'll never know it so that's the benefit of my logic.
I can't prove anything for you, I probably can't say anything that will help you feel better, even if I wish I could. It's probably something you're just going to have to work out yourself and come to whatever conclusion you end up with. Either way, I hope you can find some peace with the loss of your mother.
"Silence is Golden. Duct Tape is silver"