CNBC anchor Mark Haines, whom the network calls a “fixture” on the channel, died unexpectedly last night at his home. Haines, 65, was the founding anchor of the financial network’s Squawk Box morning show and also co-anchored Squawk on the Street. "With his searing wit, profound insight, and piercing interview style, he was a constant and trusted presence in business news for more than 20 years," says the president of CNBC in a statement. New York Stock Exchange traders held a moment of silence in Haines’ honor. (More CNBC stories.)