Between Forshufuud's Who Killed Napoleon? & Assassination at St. Helena, Revisited, there was Assassination at St. Helena: The Poisoning of Napoleon Bonaparte. David Chandler collaborates with Forshufuud & Weider to write the forward for this book & express his belief in the arsenic theory as well. With his endorsement & as greatly researched as this these works are, it is difficult to understand why so many other so-called experts doubt the poisoning of Napoleon. This book differs from most, exploring the arsenic theory, & elaborating on the history prior to the exile[s] & briefs on similarities between the death of Napoleon & his son, the King of Rome.
It is an interesting & informative book, well worth reading.