The saddest thing of all is that there is no evidence to suggest that Natasha commited suicide ~ apparently the authorities are leaning towards the accidental death theory...however it is something nobody will ever know.
Regarding the mother, of course she did commit suicide and as I have never been in the terrible situation of losing a child I cannot even begin to imagine the pain she felt.
Suicide is, by it's nature, a selfish act. Like it or not. This doesn't have to have negative connotations at all. People who commit suicide cannot see beyond their own pain. I know of someone whose father took his own life, even though he knew his daughter would be visiting that day and find him.
Surely, if he could have thought beyond his pain, he wouldn't have put his daughter through that?