Gene Pitney is the only person of any importance that I can find.
Al Wilson died on April 21, 2008 at the age of 68.
Gustl Weishappel died on April 21, 2008, in Grfelfing, Bavaria, Germany.
Mark Eiges died on April 8, 2008, in Los Angeles, California, USA.
Giovanni Nuvoletti died on April 4, 2008, in Abano Terme, Veneto, Italy.
Beatrice Arthur died peacefully on April 25th, 2009 at her Los Angeles home from cancer. She was 86 at the time and the second Golden Girl to die after Estelle Getty who passed away in July 2008.
He died on April 5 2008 of old age...
On April 29, 2008
Albert Hofmann was 102 years old when he passed away on April 29, 2008.
Ernesto Bonino died on April 29, 2008.
Dick Sasso died on April 10, 2008.
Nina Schulman died on April 10, 2008.
Anri Rulkov died on April 1, 2008.
Johan Venninen died on April 13, 2008.
Iraida Polanco died on April 20, 2008.
Esko Nurminen died on April 26, 2008.
Demeter Marczis died on April 28, 2008.
Marvelli died on April 21, 2008, in Dresden, Germany.