"It is with deep sorrow and an immensely heavy broken heart that we have to share the most shattering, unfortunate and unexpected passing of our beautiful beloved daughter and sister Christina Ashten Gourkani," the family wrote on Instagram. The 34-year-old model went by the name "Ashten G" online and had over 600,000 Instagram followers, along with an active OnlyFans page that's received over 25,000 like.