In a statement provided to PEOPLE by Laundrie family attorney Steven Bertolino, Chris and Roberta Laundrie say the new three-part documentary series American Murder: Gabby Petito

Petito’s parents, Joseph Petito and Nichole Schmidt, are currently suing the Laundries after claiming they knew that their son had intentionally killed their daughter and refused to tell them.

Brian Laundrie’s sister is speaking out for the first time since the release of Netflix’s documentary "American Murder: Gabby Petito." The documentary covers Brian’s 2021 killing of Petito, followed by his suicide.

Roberta and Chris Laundrie issued a damning statement against the Netflix true-crime documentary last week (19 Feb)

Brian Laundrie's sister says she hasn't spoken to her parents in two years amid fallout from a new docuseries that reveals text messages between her and her mom that shows them joking about how police let Gabby Petito's killer slip out under their nose before ultimately killing himself in a park nearby.

Brian and Cassie Laundrie's parents are Christopher and Roberta. According to a report from The Independent, Christopher has lived in "Long Island, living in Woodhaven, Bayport, Bohemia, Maspeth, Forest Hills and Sayville" in the past and Roberta spent nine years working in administration for the Suffolk County Government, between 2011 and 2020.

After declining to participate in the documentary, Brian's parents shared a statement about the Netflix special, in which they called the series "one-sided."