User blog comment:D.Ryan/Picture's from for Minerva's Den/@comment-75.41.74.142-20100813041001

The boy is the concept for the Little Brother, which they didn't use for the game. In Rapture, they were suppose to be made as gatherers like the Little Sisters, but the implanted slugs somehow made them aggressive, either due to their underdeveloped testosterone or their y-chromosomes. It would be neat to see one in Persephone's holding cell, going rabid like a wild dog, and instead of glowing yellow eyes, like the Little Sister, he has glowing red eyes.