JD Souther, who collaborated on ‘Heartache Tonight’ and other Eagles hits, dies at 78 NPRJD Souther, Singer Who Co-Wrote Eagles Classics Like ‘New Kid in Town,’ Dies at 78 VarietyJD Souther, Who Wrote Hits for the Eagles, Dies at 78 The New York TimesActor, singer who co-wrote legendary classics dead at 78 AL.comJD Souther, Hall of Fame songwriter for the Eagles, dead at 78 New York Daily News