Plane Crash [VIDEO]

Snapchat video right when it happened.  You can hear the jet engines, there's a flash of light, and then she says "Oh my god!"  Also, how stupid is the video she's making?  Yeah, she didn't know what was about to happen but she flashes a peace sign, says "You're so gay," and does a duck face.  What is that?  I was extremely annoyed after watching her.  Anyway, no one was in the building during the crash, but all seven passengers and both pilots were killed.  It's still not clear what caused it :(