The man accused of murdering Tia Sharp in the UK wrote to his father from prison - begging for his forgiveness and claiming her death was an accident.
The three page letter was read out at the trial of Stuart Hazell - who denies murdering the 12 year-old in south London last year.
Prosecutors claim he sexually assaulted Tia before killing her and hiding her body in her grandmother's loft.
"God I hate myself I should have gone about this a different way, told the police everything. They're trying to say it was sexual but I promise you it wasn't"