The thing is, that poor Mum will already be blaming herself. And I know that for me and for other parents that I know, that you can be very PFB about your first child and wrap them in cotton wool. By the third, you give them a much freer reign than you gave your first!
I am missing a daughter too but my little one died of SIDS. Doctors, nurses, medical staff told me I did nothing wrong but I know what it's like to still blame yourself regardless.
And I can only imagine the panic and despair those poor parents are going through, not knowing where their child is and if she'll ever be found.