Andrea Lee Anna Castilla was 28 when she was fatally shot on the evening of October 1, 2017, while attending the Route 91 Harvest music festival in Las Vegas. She was celebrating her birthday with her boyfriend, sister and her sister’s fiancé when a gunman opened fire from a hotel room on the 32nd floor of the Mandalay Bay Resort and Casino during a headliner’s set. Andrea was struck in the head; her family carried her through the panicked crowd, scaled a fence and placed her in the back of a passing truck that was transporting victims to the hospital. She was pronounced dead at the hospital.

The shooter was identified as 64-year-old Stephen Paddock of Mesquite, Nevada. He fired more than 1,000 rounds into the crowd, killing 60 people and injuring hundreds more, and was found dead of a self-inflicted gunshot wound in his suite. The investigation concluded Paddock acted alone and no arrests were made; his motive remains officially undetermined.

If anyone knew Andrea or was at the Route 91 Harvest festival that night and can add details about her or her movements that evening, please share what you know.