The UN chief on Monday issued a statement expressing deep sadness at the death of 15 people, including 11 children, at a school in the Russian city of Izhevsk, following an attack by a lone gunman who killed himself at the scene. Two dozen people were wounded. According to news reports, the gunman who was known to authorities and was a former pupil at the school Number 88, was wearing a Nazi swastika on his T-shirt during the attack, and Russian authorities are investigating the perpetrator’s suspected neo-Nazi links. In a statement issued by his Deputy-Spokesperson, UN Secretary-General António Guterres,...