Gunfire broke out inside a meeting room inside at the Hilton Garden Inn in Queens on Thursday afternoon leaving two men dead and guests utterly stunned. A source told the Daily News that six men met to discuss an an Internet marketing plan for a new health and fitness business, but at some point, 47-year-old Gary Zalevsky pulled out a gun and fired several rounds into 31-year-old Brian Weiss before turning the gun on himself. Asked whether the bloodshed was mob-related, Queens District Attorney Richard Brown said, “It would just be speculation at this point.”