Brian Laundrie reportedly made strenuous efforts to hide his unforgivable act after he ended the life of his girlfriend, Gabby Petito, in September 2021.
After the murder, he allegedly sent messages to her parents, pretending to be her.
In a lawsuit filed by Gabby Petito's parents, Joseph Petito and Nichole Schmidt, they state that after their son-in-law murdered their daughter, he sent messages 'back and forth between his own and Gabby Petito's phone in an attempt to conceal that she was dead'.
This was reported by People.
The young couple was on a cross-country camping trip.
Along the way, they documented their adventures on YouTube, Instagram, and TikTok, when 22-year-old Gabby suddenly disappeared.
Her body was found on September 19 in Grand Teton National Park. An autopsy later determined that she died due to violence against her head and strangulation.
According to the lawsuit, Brian Laundrie allegedly sent a message to Gabby’s mother, Nicole Schmidt, on August 27 - the same day the family believes she was murdered.
In the message, Gabrielle Petito's grandfather Stan was mentioned by name, the problem was that Gabby never used her grandfather's name.
According to the family, on August 30, he sent another message to Gabby's mother, telling her that there was 'no phone service in Yosemite park in an attempt to deceive Nichole Schmidt into believing that Gabrielle Petito was still alive', as stated in the lawsuit.
The lawsuit for emotional distress, filed against Brian Laundrie’s parents, Christopher and Roberta Laundrie, also alleges that Brian, in a desperate call on August 29 - two days after Gabby's death - told his parents that she was 'gone'.
On the same day, the Laundries contacted their lawyer, informing him that Gabby was 'gone', and that their son needed a lawyer.
In October, Brian Laundrie's body was found. He had shot himself. And in January last year, the police confirmed that Laundrie was responsible for the death of 22-year-old Gabby Petito.
The police said that the young man had written his confession in a notebook before taking his own life.