Sofya Tsygankova, the separated wife of pianist Vadym Kholodenko, has been charged with killing the couple’s daughters in Benbrook near Fort Worth, Texas, American media reported, citing law enforcement. Tsygankova was charged with two counts of capital murder. Her daughters, Nika, 5, and Michela, 1, were found dead by their father in their rooms on Thursday, March 17. The woman had several stab wounds which she seems have to done by herself.