RICHARD HUMNICK OF MINNESOTA WHO DIED IN WWII

I'm working on an old family friend's family tree.There is a Robert S. Humnick and Richard Humnick who were twins in her tree.I have found the WWII enlistment information for Robert S. Humnick but have found nothing for Richard Hunnick.Richard Humnick died in WWII.I don't believe he's buried at Ft. Snelling National Cemetery.Could anyone help me find what battle he died in, the date of his death and where he might be buried?Both of these boys were from Minneapolis, Minnesota in Hennepin County.

Thanks,

Mary