Help to give a proper burial location to a Bordenschutzen and all his Crew

Hello to all!
New to this forum I ask your precious help in order to research if it is possible to determine where a machine gunner of a JU88 lost his life together with all the crew.
The airplane, belonged to 9./KG30 "disappeared" on 14.06.1943 over the Mediterranean area and its Werke Nummer was 524 4D+IT
The pilot was Uffz. Maximilian Hübner and the full crew was composed by:

Uffz. Hübner, Maximilian. F. Vermisst
Obgefr. Loose, Karl-Heinz. B. Vermisst
Obgefr. Wobbermein, Walter. Bf. Vermisst
Obgefr. Schildbach, Karl. Bs. Vermisst (the bordenschutzen object of this thread)

AS described, all of them were MIA.

My main question is to know, if possible, the crash location, circumstances etc....any little feedback will be greatly appreciated!!!

Many thanks in advance to all!
Fab