Ukrainian detectives have acquired a video depicting lawyer Yuriy Hrabovsky, Russian citizen Alexander Alexandrov's defender who was found dead on March 25, telling a man off screen that he would no longer defend the Russian.

"The procedural supervisor and I have decided to show one video accessed by detectives by means of cloud technology from an IT service of the killer," Ukrainian Deputy Prosecutor General, Main Military Prosecutor Anatoliy Matios said at a press conference in Kyiv on Tuesday.

"I, lawyer Hrabovsky Yuriy Leonidovych, promise and undertake to stop rendering legal assistance to defendant Alexandrov Alexander Anatolyevich in a criminal proceeding underway at the Holosiivsky District Court in the City of Kyiv," says the video.

A man off screen asks him for reasons for this decision, and the lawyer says he "believed it was impossible to continue to defend him in that trial." "Why is it impossible? Have you understood your mistake?" the man asks. "Yes, I have understood my mistake," Hrabovsky says.

The police had been unable to establish Hrabovsky's whereabouts since March 5.

Matios said on March 20 that a person suspected of organizing Hrabovsky's disappearance had been arrested. He said the operation was planned by 'former Ukrainians' and Russian security services to 'create a setting' for the final stage of the trial of the Russian citizens.

Hrabovsky's death was reported in the morning of March 25. Matios said later on that day that the second suspect in the murder had been detained in the Odesa region on Thursday morning. The suspect identified the murder scene and the place where the lawyer's body was buried.