Wish you the best and yes keep us posted.

A chest on shot can leave very little blood on the ground and often the bullet may not even exit making things worse. I just say this so your not alarmed if you find a meager blood trail. The good news is you heard him flle and what appeared to be him crashing...more than likely your right on the money and he is where the last noise cam from. Be out at sun up, while the scavangers is a great idea birds such as crows, raven will not be on the carcass until sun up but will roost near the fresh kill site and often will lead right to the spot. I hope you either marked the area or have good recall, in any event go to the stand and if you have buddies have them stand at the shot site, replay the entire events and then begin the process. When your dealing with minimal sign, poor tracking weather, not fresh in your mind(next day, later, etc.) or a disturbed area it is best to do it methodically, slow and easy will get the deer. I would concentrate on the last sound and more than likely the thickest stuff close to that area...a grid search is always a good bet. Also make sure to have a roll of trail marker and mark the sign as you find it...one can often go off on the wrong path...this will help at a glance to get back to where you last confirmed he was. If you got a buddy have them stand at the last sign until the next sign and so on. Just don't all go tramping in different directions until you have absolutely nothing. Don't overlook the fact he may have doubled or circled back, so if you think hey wait a minute I am going back to my start point...keep on the sign and let it lead you to your deer.

Best of luck!