Your argument is good. However the stuff on thumb drive gave them “probable cause” for a warrant to search his house. ON the computer there they found more things and copy's of the porn that was on the thumb drive. He wanted to suppress the evidence that was found after the search (with a warrant) of his home.
Yah... that’s a tougher one. I don’t know if the thumb drive by itself is good enough probable cause for a warrant on the home. It could be I suppose... but if another judge tossed the warrant I could see that justification too.
Ah, well... I guess that’s what judges are for.