Kinda figured he was from Mississippi...Who the hell sends ricin to an unknown Mississippi Senator.
But he also sent it to the usurper, Cornyn and Levin. Kind of random.
To say nothing of the way the post office has been consolidating, and if the postmark was Memphis, and one letter was sent to a Mississippi official....bingo!! Tupelo is close enough that all their mail would now be postmarked at Memphis.