Tom Apostol & Comply or Die RIIIIP

The Deaths in 2016 site lists under May 9 and 8 respectively:

• Comply or Die, 17, British thoroughbred racehorse, won the Grand National(2008).^[7] (death announced on this date)
• Tom M. Apostol, 92, American analytic number theorist and professor

The two have something else in common other than their deaths being one day apart, and we'll get to that.  A horse passing away at this point is "timely", an addition to the recent "Horses" pattern-cluster.  Note this exerpt from Comply or Die's wiki page:

 Ridden by Timmy Murphy 

Note from Murphy's wiki page:

Timothy James "Timmy" Murphy (born 20 August 1974)  

His birthday is an addition to the "Targeting Family Birthdays" pattern-cluster given that August 20th is my fathers birthday, this year he turns 88.

Now note from Tom Apostol's wiki page:

Tom Mike Apostol (August 20, 1923 – May 8, 2016) 

Another addition to the above cluster and we also now have an "August 20 (x2)/Date Sequence" pattern-cluster.