The child's grandfather had been pushing the boy in a stroller along the lakeside Friday afternoon when the stroller went into the 42-degree water. Authorities say the grandfather jumped into the harbor to save the boy, but was able only to shout for help.
The boy remained submerged for at least 15 minutes before members of the Chicago Fire Department's dive team pulled him out, unconscious but alive.
A family friend tells the Sun-Times the boy's parents are optimistic.
