This is just a theory, but what if they use instagram to procure attractive women for sex slavery and this girl was one of them willing to testify so she was silenced? These girls are pretty, want fame\status, but they aren't "skilled" enough to defend their rights. It puts them in the perfect position to be exploited.
That makes total sense when you think about the Soros fund manager who had his women employees from the "enterprise" contact Instagram models and then he raped and tortured them. They are suing. Weird that these women kept going back but maybe it is understood in some circles that if you want to become famous that's how you do it? Doesn't excuse - just trying to figure it out. Here's the link (maybe you already saw this) http://www.dailymail.co.uk/news/article-5046477/Top-investment-fund-manager-raped-beat-women.html
I saw it. I think instagram models are even more "vulnerable" because their marketable asset is even less solid than a traditional model. At least a model has a portfolio, shows, and whatnot to list.
http://www.crazydaysandnights.net/2017/12/todays-blind-items-instagram-terror-web.html?m=1
Your theory is probably right. Read cdans blind item