When Tia arrived at Maden 's home , he drugged her with Olanzapine , a powerful antipsychotic tranquilliser .
On 3 April 2010 , Maden called Tia 's mother on the pretext of having Tia come over to his house and babysit his 10 - year - old daughter .
When Tia arrived at Maden 's home , Maden drugged Tia with Olanzapine , a powerful antipsychotic tranquilliser .
On 3 April 2010 , Maden called Tia 's mother on the pretext of having Tia come over to his house and babysit his 10 - year - old daughter .