Need help with Hit and Run

I was the first to arrive on the scene of a fatal hit and run accident. It was a shocking site and to make matters worse I was charged with the accident! To make a long story short the charges were dropped because there was no damage to my truck and whoever hit the person left a part of their car behind. we need help identifying the part. I have looked through on line parts books for weeks without success.
40749
If anyone can identify this part (year make and model) of the vechile it fits it would be a big help to the police and the family of the victim.
thanks, Ted
PS I can pm a larger picture if needed

How very unfortunate. I am sorry this happened to you.

Approx. how long and wide is the part? Is it metal or plastic?

the part is 14" wide X 8" tall 11 GA. sheetmetal with two nylon buttons

I believe the part may be part of the radiator support, exhaust shield or hanger maby a skid plate. it's really got me baffled:banghead:

The part should have some sort of part number or identifying mark on it , take that to the parts dept of every local car manufacturer ( i.e.-Ford , Gm , etc. ) and see if they can identify the application of the part found on scene of the accident . Might be a long shot but worth trying - good luck !