This link from January
Nóra Quoirin's parents want case reopened
According to an earlier report, Nóra died from internal bleeding - probably caused by hunger and stress.
"We ultimately believe there is absolutely no chance that Nóra got out of the chalet by herself," said Meabh.
"We have elements to believe that she was probably kidnapped, and I think it is extremely important for us to get to the truth, to get to the bottom of that and seek justice.
"It is important for us to see how police conducted their investigation at the time."
Speaking on the programme, Sebastien said he was "horrified" when he found Nóra was not in her bed, and that she would "never get up in the middle of the night".