(Credit: Bolshoi Theatre) Opera singer Vladislav Verestnikov has died at the age of 77. The news was reported by the Bolshoi Theatre stated that the baritone was suffering from a long illness.  Born on Jan. 4, 1947, Verestnikov graduated from the Kharkov Institute of Radio Electronics, and then from the vocal department of the Kharkov Institute of Arts. In 1975, {…}