“The Gabby Petito Story: Vanishing Point,” airing May 19 at 8 p.m. on ABC News’ “20/20,” revisits the tragic case of travel blogger Gabby Petito, whose parents aim to raise awareness about domestic violence following her death in 2021. Petito and fiancé Brian Laundrie’s planned adventure turned dark when she went missing, leading to her body being found in Wyoming. The episode reveals troubling texts from Petito’s phone, shedding light on her relationship with Laundrie and the warning signs of abuse.