Karl Folkers, who first synthesized CoenzymeQ10 and the former Chairman of the yearly International Symposium on the BioMedical and Clinical Aspects of CoenzymeQ10 was apparently murdered on his return from Sweden in 1997 after chairing the most recent conference.
On the other hand no diet alone, restriction diet or otherwise, will double lifespan. (See further below.) Media focus on caloric restriction diets is for the sole purpose of diverting attention from megadoses of antioxidants, especially CoenzymeQ10, combined with interval training and no meat in the diet and the daily inclusion of oatmeal, an approach which can indeed double lifespan.