Information about my uncle

[TAGlob]

Hello. I'm looking for information about my uncle (my father's brother). Here is what I know (from the Volksbund Deutscher Kriegsgraeberfuersorge website):

Name: Guenther Globig
Born: July 05, 1920
Place of birth: Gross Schoche
Rank: Feldwebel
Died: May 28, 1944
Place of death: Tolleinen by Hohenstein (Ostpreussen, today Tolejny in Poland)
Buried: Tolleinen by Hohenstein

Before he passed away, my father told me that Guenther crash landed after a training run.

Now for the speculation: There was an airfield in Grieslienen (today Gryzliny), which is only a few miles from Tolleinen. III./KG3 was stationed there from March to June 1944. III./KG3 flew Ju 88 A's, then was switched to Heinkel He 111 H's starting in March 1944. Perhaps Guenther crash landed while learning to fly the He 111's.

I assume that there must have been some sort of crash report. How would I go about finding that, and any other information about my uncle?

Follow-up question: Is there a way to search the Volksbund website by date of death and location of death? Presumably there were other crew members who died in the same crash.

Any help will be greatly appreciated.