The deadly explosion outside an upscale Moscow restaurant at Kudrinskaya Square was a "brutal terror attack," Moscow Mayor Sergei Sobyanin said, promising the perpetrators would be punished. But many questions remain.
An explosion at a restaurant in central Moscow killed at least three people, including the suspected bomber on Saturday night, authorities said.
Moscow Mayor Sergei Sobyanin described it as a "brutal terrorist attack."
"Law enforcement agencies are i... [2600 chars]