CASEY JOHNSON LOVE HURTS
This is pretty straight forward. Not complicated at all. You get a progressed Mars square, hers to natal Venus (love). You're young and running with a superficial crowd (no spirituality) and this aspect throws you into emotional chaos.
There is nothing particularly wrong with this girl. I don't see her drug problem, and I suspect it has something to do with the houses which I don't have without the time. She has no focal planets meaning she is not that complicated -- which could have contributed. She didn't see all the possibilities. The media called her an heiress, but she wasn't rich, her parents are. They didn't like what she was doing. She didn't like them. They pulled the "heiress" plug.
There is a lot of anger with her natal Mars squaring her Libra stellium (four planets in the same sign) Sun, Venus, Mercury, Pluto and then the transiting Pluto squaring those same Libra planets. She was doing drugs to deal with her feelings when she needed psychological help. Then she hits a negative progression and the worst happens. Two things you need to die -- a negative progression and the transiting Pluto making negative aspects. It's a tragedy. Plain and simple.