Matios showed the recording at a briefing in Kyiv, Censor.NET reports.
"There are several videos of this kind," he said.
"The decision to bring this information to public was taken by the investigator, the pre-trial proceedings supervisor, and me," Matios said.
He also said that the murder has been already solved.
"Any ideas about domestic homicide as well as cosmic conspiracy theories can lead us away from this already solved murder," Matios said.
He also added that "other recordings with specific comments may also be released."
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