Multi-strategy hedge fund manager Deimos Asset Management has hired Charles Slotnik as a managing director and portfolio manager.   In his new role, Slotnik will focus on building and managing a portfolio of investments in event arbitrage. Prior to Deimos, Slotnik spent the last 20 years managing portfolios focused on event arbitrage at Carlson Capital, Brookline Avenue Partners and Slotnik Capital Management.   He is the third portfolio manager to join Deimos since July, following the additions of Paul Orwicz and James Warner, as the firm builds out a suite of hedge fund products expected to include a multi-strategy hedge...