Russian authorities are investigating the fall that lead to the death of a 32-year-old investigative journalist as an accident or something else but not as a crime.
A Sverdlovsk Oblast police spokesman said it was "unlikely that this story is of a criminal nature".
News website Novy Den (New Day) said its reporter Maxim Borodin died at a hospital on Sunday (local time).
Local police said they did not see any foul play, but his death prompted intense speculation among friends and colleagues.
Borodin said there were masked "security forces" around his apartment building early April 11, Borodin's friend, Vyacheslav Bashkov, said in an April 15 Facebook post. Borodin reportedly said that he believed his apartment was about to be searched and that the security officers were waiting for a court order. An hour later, Borodin called him to say he was mistaken and the police were conducting a drill.
He said that Borodin was alarmed, but not hysterical or drunk.
"I didn't call him after that", Bashkov wrote, "although I was waiting for him to write something on Facebook". "But he didn't write anything; and on the 13th, the media reported that Maksim had been found under his balcony and he was in the emergency room".
Borodin regularly covered high-profile corruption cases and crime in Russian Federation.
In the past weeks, Borodin was covering the deaths of Russian mercenaries in Syria, identifying fighters who had been returned to their villages for burial and showcasing the Russian Ministry of Defense's denial that any Russian fighters were killed during the February 7th air strikes despite evidence to suggest otherwise.
Mr Prigozhin was indicted by the U.S. in February on charges that he funded the "troll factory" alleged to have tried to influence the 2016 presidential election.
Many outlets have reported on the incident in Syria where American airpower killed possibly hundred of Russian mercenaries.