South Carolina mother suffocates and drives children in the river

Today while watching CNN I became aware of a mother who suffocated her children and then drove them into a river. Who does this? What happened to loving your children and doing everything to protect them? I have never been one to be judgemental but come on! Again who does that? Being a single parent and the sole provider to three daughters I know that things can be rough and you may feel like you won't make it ...she should have prayed. Please have mercy on her soul.