He then inflicted a ' horrific catalogue of sexual injuries ' on Tia before stabbing her in the stomach and strangling her with a ligature made from a guitar string .
When Tia arrived at Maden 's home , he drugged her with Olanzapine , a powerful antipsychotic tranquilliser .
Maden then inflicted a ' horrific catalogue of sexual injuries ' on Tia before stabbing Tia in the stomach and strangling Tia with a ligature made from a guitar string .
When Tia arrived at Maden 's home , he drugged her with Olanzapine , a powerful antipsychotic tranquilliser .