The events surrounding the Massacre on 1 June 2001 proved very controversial in the country. A two-man investigation team appointed by Gyanendra, and made up of Keshav Prasad Upadhaya, then Supreme Court Chief Justice, and Taranath Ranabhat, then Speaker of the House of Representatives, carried out a week-long investigation. After interviewing more than 100 people—including eyewitnesses, palace officials, guards, and staff—they concluded that Crown Prince Dipendra had indeed carried out the massacre, but they drew no further conclusions. As his nephew lay in a coma, Prince Gyanendra was named regent; but after King Dipendra's death on 4 June 2001, King Gyanendra ascended the throne.