A man obsessed with violent child porn and "snuff" videos has been told he must spend the rest of his life in jail after admitting the horrific torture, rape and murder of his 12-year-old niece.
Unemployed John Maden, 38, lured Tia Rigg to his home on the pretext of babysitting, but he drugged her and acted out his sick fantasies on the unsuspecting youngster, inflicting horrific sexual injuries before stabbing her and strangling her with a guitar wire.
He carried out the attack on the afternoon of April 3 at his home in Dalmain Close, Cheetham Hill, Manchester, and then called police, appearing "chillingly calm" when he answered the door to officers who raced to the scene.
Maden had an obsessive interest in pornography relating to paedophilia, rape and torture, keeping an "enormous pile" of the material at his home. From his mobile phone, police recovered folders of rape and torture entitled "snuff", "snuff stories" and "brutal rape".
Maden, the brother of Tia's mother Lynne Rigg, was due to go on trial at Manchester Crown Court for murder but pleaded guilty instead.
Passing sentence, Mr Justice Keith said that in his case the mandatory life sentence for murder must mean just that - and he will never be released.
The judge said: "It is inescapable that Tia Rigg died because you decided to realise your fantasies about torturing and killing a young child. The fact that you chose your 12-year-old niece, who had put her trust in you, makes what you did all the more unspeakable, as was the fact that all of this was planned by you and you lured her into your home by pretending you wanted her to babysit for you."
Speaking after the case, Tia's mother Ms Rigg said: "Tia was my baby girl. She was always happy and never sad. She brought a smile to everyone who she met. Tia was loved by everyone, family and friends, but to me she wasn't just my daughter, she was my best friend.
"When this nightmare happened, it killed me inside. My heart has been broken and will never mend. All that is left is a big empty hole. For me, this nightmare will never end but now justice has been done, at least Tia can rest in peace.
"Tia was my whole world. I love her so much, she was my life. I miss her big smile every morning and her beautiful freckly face. She always laughed when I said that. Not a day goes by when I don't think of her. I love and miss her so much and always will."