Filin was attacked as he approached his home in Filin on at least six months around midnight . ` The police should investigate . '' The unidentified assailant threw concentrated acid in his face , causing severe burns . Sergei Filin had suffered intimidation , including threatening phone calls , state media say .
Filin was attacked as he approached his home in Filin on at least six months around midnight . The unidentified assailant threw concentrated acid in his face , causing severe burns . Sergei Filin had suffered intimidation , including threatening phone calls , state media say .