Please use the 3 initials of the individual you feel best connects the technological and conceptual threads of all of the steps (based on the clues you've been given) to decrypt this ciphertext- which will confirm your guess if you are correct!

STX

EKHASPRMNLGTUSLGJUKRNCBOGMDEQECXIYDJLXOSEDTHNZMGGFCZSJVPCEHDTVWVPTCZDUDDGBRATGB

ETB

Email me why you think this person connects to all 8 of the clues given on the map below. Just like for your last guess, list the relevance for each area!