Chiara Sgreccia

1 month ago | nbcnews.com | Marlene Lenthang |Chiara Sgreccia |Jean-Nicholas Fievet |Astha Rajvanshi

Updated The world is paying tribute to Pope Francis, who rattled the Catholic Church's conservatives and inspired some progressives, following his death yesterday at the age of 88. Francis' death certificate, released by the Vatican overnight, said he died from a stroke that prompted irreversible heart failure. He had suffered a long series of health issues.