Complex sentence: Following the conclusion of this tour, the band headed straight for the studio, but Strummer died of a congenital heart defect on 22 December 2002 after returning home from walking his dogs.
Split into simpler sentences: Following the conclusion of this tour, the band headed straight for the studio. Unfortunately, Strummer died of a congenital heart defect on December 22nd, 2002 after returning home from walking his dogs.