Brian Laundrie's parents move to dismiss lawsuit brought by Gabby Petito's family

The parents of Brian Laundrie are seeking to dismiss a lawsuit brought by the family of his late fiancée, Gabby Petito, calling it "baseless" and "frivolous." Laundrie was found dead in a Florida nature reserve last fall, several weeks after Petito's body was discovered in a Wyoming national park, where the couple had been vacationing.

"A motion to dismiss the baseless and frivolous lawsuit commenced by Gabby Petito's parents was filed in court," Laundrie family attorney Steven Bertolino said in a statement to CBS News on Wednesday. "The Laundries have exercised their constitutional right to refrain from speaking and have relied on counsel to speak for them. This is not only common practice in our civilized society but it embodies the exercise of fundamental rights under the United States and Florida Constitutions. The Laundries' rights are inalienable and the Laundries can never be liable for exercising their legal rights in a permissible way."

Petito's family filed the lawsuit earlier this month, alleging that Laundrie told his parents, Christopher and Roberta Laundrie, he had killed Petito before he returned home alone from their ill-fated western trip, and that the couple concealed their son's alleged confession from the Petito family and authorities.