"He died himself. Was at home. Heart failure. Yesterday, he felt bad during all day," he said.
Mates of the deceased terrorist discard the official version. They say he had no problems with the heart and believe Bolotov was poisoned.
"I don't think heart failure could occur in his 47. Those who stayed near him say he had some booze with 'right' people a couple of days ago. Yesterday he got sick. I believe this has to do with his recent comments... Novorossia was not his cup of tea... He was killed," the source said.
In his last public interview with Rosbalt news agency in December 2016, Bolotov said he was living in Moscow and strongly criticized his successor Plotnitsky, saying he had been toppled as a result of a conspiracy.