Mark Haines, the dry-witted and unflappable host of CNBC's "Squawk on the Street," has died. He was 65. Haines was a charter member of the on-air team at "Squawk Box," and then "Squawk on the Street," ...

Mark Haines, co-anchor of CNBC's morning "Squawk on the Street" show and one of the business news network's most recognized faces, died unexpectedly on Tuesday evening, the network said. He was 65.