KYIV (Reuters) – Orthodox chants of mourning resounded in a packed central Kyiv cathedral on Friday as Ukraine buried an agricultural tycoon with his wife after they were killed in a missile strike that hit his home last weekend. Oleksiy Vadaturskyi, co-founder and director of one of Ukraine’s largest agricultural holdings, was killed with his wife in his southern hometown of Mykolaiv by what Kyiv says was an S-300 missile fired by Russia. The sudden death of the 74-year-old, described as a “titan of Ukraine’s agricultural sector” by one national farmers association, sent shockwaves through a …