Man dies after jumping into lake to help child who fell off boat

CHICAGO -- A man has died after he was pulled from Lake Michigan at the 63rd Street beach in Chicago.

Officials say 31-year-old James Hammond was taken to the hospital in "extremely critical" condition after he was located during a helicopter search of the water.

Michael David Hammond, James’s brother,  says James jumped in to rescue his 11-year-old nephew who had fallen off the 15 foot boat without a life jacket.

Michael says his brother was able to save his nephew but he may have got taken down by an undertow.  He says he was a  very strong swimmer.

Michael says while heart broken at the passing of his brother he is not surprised at all he didn't hesitate to jump in and save his nephew.

The child was taken to Comer Children's Hospital in good condition.