The facts we did know were surely enough to sow some seeds of doubt in police minds.
1) Child spends night at Grandma's
2) Grandma is working night shift
3) Grandma has a boyfriend with some unspecified but admitted previous
4) Boyfriend claims to police and on TV that he either walked child to the tram stop or watched her walk toward it but he is not sure which it was.
Fecking coppers should have torn the house apart on day one and they should never have let him go ...... no matter what his 'uman rights might be.