Kerrymum please give up, you're just digging yourself in deeper and deeper.
The woman was working and I think the baby was 5 months old so sleep deprivation sure as hell played a part in her actions.
She thought she was coping, the problem sometimes is that the stressed non-coping person is the last to see that things are not quite right. Until a person has put the sugar in the fridge and the milk in the cupboard they have been on stress related or sleep deprived autopilot without realising it and they haven't "re-evaluated our lives" accordingly until they've made those errors.
I think even one of the tabloid newspapers might be more sensitive than you are being.
We don't know the circumstances of her life, maybe her dp strolled off to work every morning leaving her to get all the children up and out before she could get to work, maybe he came home each evening expecting her to have bathed them and put them to bed and have his dinner on the table ready. Maybe her mother was very ill, maybe she was worried about a pregnancy scare.
Unless you've walked a mile in her shoes, please don't be so quick to compare what you would or wouldn't do.
You say you'd throw yourself off a bridge if you were in her shoes, but stop and think. You sound as if you only have the one child, no-one would be left an orphan in that situation. She has 2 other children that need their mummy and she needs help to go on living and coping with the trauma of what has happened for their benefit.
Do you really understand the word compassion or you are you just wanting to share how much this has upset you personally.