***no one was present to argue for Miller in the Miller case.***
From what I have read, the plaintiff had crossed the Arkansas line from Oklahoma to rob a bank in Siloam Springs AR when he was caught. Some say he was dead when this went to the SCOTUS.
https://encyclopediaofarkansas.net/entries/united-states-v-miller-et-al-4742/
hhttp://www.law.nyu.edu/sites/default/files/ECM_PRO_060964.pdf
Yes Miller had died before the case reached SCOTUS and his attorney didn’t bother to travel to DC. The governments case was left unchallenged.