|Bio: After being fired for his lack of progress in his studies of Dr.
Langstrom's work, Dr. Milo left the room in a fit of anger.
Turning to enter where they kept Doomsday locked up, Milo
realized that the once lobotomized creature was completely
healed; telling him of his origin, Milo set Doomsday free and
help him with his problems with his dealings with Cadmus.
Doomsday "got rid" of Milo's problems by simply killing him.
For more, refer to Milo's BTAS