Excellent observation, LE did examine numerous vehicles, the van, we know for sure because Lyndsey Croslin herself offered us that information. LE would not comment on what, if any, evidence was collected from the van. I find it almost horrifying that we then received an excuse for some blood that MIGHT have been in the van due to a deer being transported in there. (This was offered by numerous members of the Croslin clan).
There was also another vehicle examined right near the time there was a Haleigh sighting in Knoxville at the Carrabba's , might have been a RAV 4....but that was never confirmed. Lastly I would love to believe that whatever vehicle Cousin Joe was transported back to Tennessee in on the morning after Haleigh disappeared was taken in and gone over with a fine tooth comb as well but I think that is a bit too much to hope for.
I don't recall any Croslins other than Misty Croslin Cummings speaking of deer blood being in the van, so when you say numerous members of the Croslin clan have offered up this information, who other than Misty have you heard claim deer blood was in the van?