Brian Laundrie

Gabby Petito's parents accused the mother and father of presumed killer Brian Laundrie of hindering the search for their murdered daughter in a lawsuit.

This fundamental legal principle renders the Petito’s claims to be baseless under the law. On Sept. 14, Laundrie's parents issued a statement, supporting the search for Petito, according to the lawsuit. "Despite the fact that Joseph Petito and Nichole Schmidt implored Christopher Laundrie and Roberta Laundrie to tell them if their daughter was alive, and if she was not, where her remains were located, Christopher Laundrie and Roberta Laundrie refused to respond to either Joseph Petito and Nichole Schmidt, or law enforcement," plaintiff's lawyer Patrick Reilly wrote.

Gabby, 22, went missing late last year during a cross-country trip in the US with her fiance Brian. The mysterious disappearance of the aspiring influencer sent ...

… Please if you have any decency left, please tell us where Gabby is located. Tell us if we are even looking in the right place." As a parent how can you put Gabby's younger brothers and sisters through this? As a parent, how could you let us go through this pain and not help us? "Gabby lived with you for over a year. The legal filing goes on to claim a letter from Nichole and Joseph pleading with Brian's parents to tell them where their daughter was ignored, and while the pair were "desperately searching for information", Christopher and Roberta were "keeping the whereabouts of Brian Laundrie secret, and it is believed were making arrangements for him to leave the country".