Media noise might scare off the key witness believed to have last seen the two sisters from the town of Pazardzhik alive, local police comments.

A day earlier it was reported that police investigating the gruesome murder of the two sisters is to release an e-fit picture of the witness. A description of the witness, a girl, said to be about 19-year-old, was provided by Borisslav Daskalov, a district coordinator and municipal councillor from Bulgaria's Roma party Evroroma.

Local police says that Daskalov should have contacted the investigators first instead of talking to the media. In this way he is threatening the life of the witness, Zhoro Stoitsev told the national television.

The investigators are not very optimistic on the authenticity of the new version for the murder.

Daskalov claims that there is only one witness of the murder, a friend of one of the two sisters, Rositsa.

According to him the police knows who killed 18-year-old Rositsa and her sister Kristina, 15, but the attackers are now outside Bulgaria.

The two sisters went missing at the end of January after leaving a disco bar in Pazardzhik. Rositsa and her sister Kristina were found raped and beaten to death at the beginning of February near the town of Peshtera.

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