Complex sentence: When Kay died in November 1994 the group stopped reuniting; five years later in October 1999 Milt Jackson died, followed by John Lewis in March 2001 and Percy Heath in April 2005.
Split into simpler sentences: When Kay died in November 1994 the group stopped reuniting. Five years later in October 1999 Milt Jackson died, followed by John Lewis in March 2001 and Percy Heath in April 2005.