I found this post on another forum by someone who is an announcer at OSH:
Colour me surprised.
Yeah, low rate this year, but still pretty bad. I happened to be just about to come into an interview with the regional director of the NTSB when it happened. I broadcast out of the IFP (International Federal Pavillion). I saw the debris flying as it sliced up from the tail through the cockpit and the NTSB and TSI guys and I bolted out onto the field.
Preliminary statements, which I actually heard, being a trusted (by the Feds) media member, was that the TBM was doing his S turns, clearing the taxiway, when the plane in front of him departed that taxiway to an adjacent intersection. However, the Canadian RV homebuilt slipped in right in front of the TBM and the Avenger pilot never saw him.
The TBM propeller contacted the tail and crawled right up the empennage and fuselage , veering off to the right as it did so. The prop went through the canopy, killing the right seat occupant. Though it went through the seatback of the pilot, he escaped unharmed.
The Avenger pilot and his wife were, understandably, freakin out (to be honest) when they were told of the death.
All in all, a bad deal.