Here is a photograph of the grave of 2nd Lt. J.M. Dotson who gave his testimony at the trial:
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=dotson&GSfn=james&GSmn=m.&GSbyrel=in&GSdyrel=in&GSst=37&GScntry=4&GSob=n&GRid=32109672&df=all&