NEW YORK (Reuters) - Hedge fund Tourbillon Capital Partners, which has made headlines with negative returns lately, hired former hedge fund manager Ross Berman as its president and chief strategy officer, a spokesman said on Wednesday. The New York-based firm is run by Jason Karp, who previously worked for Carlson Capital and Steven A. Cohen’s SAC Capital before founding his own firm in 2012. Berman twice ran his own hedge fund and has spent time consulting in the $3 trillion industry over the last two years.