Hanratty, Kian's Dad, took Valium that night and passed out. Prosecutors say he knew McMillan was high and should've ensured Kian's safety.
McMillan later tested positive for heroin, valium and alcohol. Jurors hear she was incapable of care and showed "wilful indifference".
The prosecution say Kian's death was "not a tragic accident" but "an entirely preventable death".
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Met. Office summary of summer 2015
Hundreds of people have lined the streets for the funeral of 'Salford Legend' and gangland 'Mr Big' Paul Massey.
Lancashire have tied up in-form batsman Karl Brown to a long-term contract, the details of which have not been revealed.