Yesterday afternoon a Pilatus PC-12/45 (N128CM) crashed in Butte (KBTM), Montana (USA) killing all 14 persons on board – mostly children.
The single-engine turboprop plane carrying children on a school ski trip nose-dived into a cemetery and burst into flames. The aircraft was believed to have been suffering technical difficulties and had diverted from its original flight path to Butte, but crashed prior to arrival.
Video:
News story & pictures: http://edition.cnn.com/2009/US/03/23/montana.plane.crash/
I just read a story on Yahoo News and speculation is now that icing was involved. But remember it is Yahoo. I will wait on the NTSB and FAA.