Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Murder Trial of 3 Teenage Sisters Changing Russian Minds on Domestic Violence Jamie Dettmer MOSCOW - Russian lawyer Mari Davtyan has built a reputation as a go-to advocate for women abused by spouses, boyfriends and fathers. Now she's defending three teenage sisters who battered and stabbed their father to death in his sleep in their Moscow apartment after allegedly suffering physical and sexual abuse from him for years. She believes the Khachaturyan sisters' case is helping to shift Russian attitudes toward domestic abuse and how victims should be treated. Police investigators have confirmed the girls' father, 57-year-old Mikhail Khachaturyan, abused the teenagers for years, regularly beating and torturing them as well as sexually assaulting them. A regular churchgoer, the rage-filled abuser saw himself as a righteous man and considered domestic violence as no sin -- a not uncommon view among Russian men. However, the shocking case of the Khachaturyan sisters -- Angelina, Maria and Kristina -- may mark a turning point when it comes to attitudes, even of men, toward domestic abuse. Moreover, it is adding public pressure on judges and the government to rethink how they treat domestic abuse victims, the Armenian-born Davtyan said. Davtyan acknowledges that in the last few years domestic violence and abuse has started to be taken more seriously in Russia. There are, however, no laws protecting domestic abuse victims and in 2017 there was an outcry when a new law offered only a fine or two-week sentence for a first-time offender who beats up a family member. Many police still ignore domestic abuse complaints, dismissing violence within homes as a "family issue." .