Eisenduller spent the majority of his time in an artificial gravity room, where his immense size did not hinder him. He rarely left and frequently ordered takeout (especially from Kingston Kitchen) for him and his three chihuahuas to eat.
The infiltration of the Tyrell Corporation by Sadik led to the interrogation and death of Eisenduller when Sadik got what he wanted out of him. Eisneduller was brutally murdered by explosive and his dogs shot and killed.
Eisenduller's data on replicant lifespans was accessed by Blade Runner Ray McCoy, who found the password on one of the deceased dog's collars in the gravity room, or in one of the security photos analyzed by the Esper machine.