Yuri Solovyov and Nureyev were roommates during a few of the Kirov's international tours. After Nureyev defected, Yuri was interrogated by the Soviet bigwigs numerous times because the authorities figured that he would have had information about the exact circumstances of the defection.
He was found dead at his and his wife's dacha. There was a revolver near the body. Perhaps the intense interrogations pushed him over the edge?