Her family said Aug. 27, 2021 was the last time they spoke with the Blue Point woman and they believe she was killed on Aug. 28.
Petito's family launched a campaign and to raise awareness for domestic violence victims.
They asked people from around the world to light a candle or lantern in her memory tonight and "light the night."
They'd like people to share a photo to social media with the hashtag #TheLightRemains.