deadmau5 (Joel Zimmerman) recently admitted to having a serious struggle with depression. [1]

He also just bought a $5 million house in Ontario [2] - case in point that money doesn't buy happiness.

[1] https://thump.vice.com/en_ca/article/deadmau5-opens-up-about... [2] http://www.youredm.com/2014/10/10/deadmau5-buys-5-million-ma...