Crash at end of Tabor

Anyone have any info about the crash at the finish of the 1/2 Tabor race today?

The whole last lap was a disorganized disaster, but I'm specifically wondering who slammed into my right side with about 600m to go and caused a pretty disastrous, and unnecessary, pile up. It was someone in a red jersey -- would love details, and maybe an explanation, either on or off list.

--Josh