Pavel Dmitrichenko, the former lead dancer of the Bolshoi Ballet, has been sentenced to six years in prison for his part in an acid attack on the ballet's artistic director.
Co-accused Yuri Zarutsky, who admitted to throwing acid in Filin's face, was sentenced to 10 years in prison, and Andrei Lipatov, who drove Zarutsky to the scene, was sentenced to four years.
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Prince Harry is in Toronto, the host city of the Invictus Games, ahead of Saturday night's opening ceremony.
The Prime Minister said she expected an implementation period of "around two years" as she called for a "creative" approach to talks.
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