When does The Disappearance of Gabby Petito return?

Gabrielle Venora Petito, 22, was killed by her fiancé Brian Christopher Laundrie while they were traveling together on a vanlife journey across the United States. The case gained widespread attention due to the couple's documenting of their travels on social media, leaked police body camera video footage, 9-1-1 emergency dispatch call recordings, eyewitness accounts, and the actions of his parents. It was confirmed by an autopsy on November 23 that he had died from a self-inflicted gunshot wound to the head.