Alesha MacPhail
He denies abducting, raping and killing the six-year-old.
The court heard it would be scientifically possible for it to have been planted.
The teenager blamed a woman for the death of the six-year-old.
Toni McLachlan, who is the girlfriend of the victim’s father, denies the allegations.
A 16-year-old boy has been charged.
He has been remanded in custody ahead of a second court appearance later in July.