According to
this NY Times article....(top item right now, not sure if you need a login to read it)
No cause for the accident has been given, but a spokesman at the scene for the National Transportation Safety Board, Keith Holloway, said investigators had recovered the cockpit voice recorder and would send it to Washington on Tuesday to be played at the board's laboratory. The recorder could indicate whether the crew discussed any signs of trouble before the accident. Mr. Holloway said the plane did not have a flight data recorder.
One area of investigation, a federal safety official said, would be whether the failure to de-ice the plane, a twin-engine Challenger 601-1A, led to its inability to become airborne. Mr. Holloway said "the pilot declined de-icing." But he said investigators did not yet know whether ice was the cause of the accident.
Even small amounts of ice on the wings can disrupt the flow of air and ruin an aircraft's lift. But there are other reasons why planes can fail to become airborne and run off the runway. The Montrose Regional Airport has no tower that could have independently assessed the weather conditions for the jet. Mr. Holloway said the plane had been cleared for takeoff by controllers in Denver at 9:55 a.m.
On Sunday, misty rain and sleet were falling after a snowstorm.
The plane skidded across the shorter of the airport's two runways and crashed into a fence just before 10 a.m. There was slush and ice on the runway, said Michael O'Connor, a Federal Aviation Administration spokesman.
Doug Percival, a tow-truck driver who arrived at the accident site shortly after he saw the jet explode, told KUSA-TV, the NBC affiliate in Denver, that the right wing "was iced up pretty heavy."
Leaving aside any obvious general media caveats, I don't think it's been stated yet whether the plane got airborne or not, but "iced up pretty heavy" doesn't sound too good.....