SIDS baby River Waddell and Mother Alex (IMAGE) University of Adelaide Caption River Waddell with mother Alex. In 2011, River died of SIDS at just four months of age, prompting his family to establish the River's Gift SIDS charity. Credit Courtesy of the Waddell family. Usage Restrictions Credit must be given for this image. Only to be used in stories about research into sudden infant death syndrome (SIDS). License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.