Rasputin was killed on December 30, 1916 (December 17 in the Russian calendar in use at the time), at the home of Felix Yusupov. 
According to Yusupov, he invited Rasputin to his home shortly after midnight and ushered him into the basement. Yusupov offered Rasputin tea and cakes which had been laced with cyanide. At first, Rasputin refused the cakes, but then began to eat them.
To Yusupov's surprise, Rasputin did not appear to be affected by the poison.
Rasputin then asked for some Madeira wine (which had also been poisoned) and drank three glasses, but still showed no sign of distress.
Rasputin then asked for some Madeira wine (which had also been poisoned) and drank three glasses, but still showed no sign of distress.
At around 2:30 am, Yusupov excused himself to go upstairs, where his fellow conspirators were waiting. Taking a revolver, he returned to the basement and, referring to a crucifix that was in the room, told Rasputin that he'd "better look at the crucifix and say a prayer,"
then shot him once in the chest.
Believing him to be dead, they then drove to Rasputin's apartment, with Sukhotin wearing Rasputin's coat and hat, in an attempt to make it look as though Rasputin had returned home that night.
Believing him to be dead, they then drove to Rasputin's apartment, with Sukhotin wearing Rasputin's coat and hat, in an attempt to make it look as though Rasputin had returned home that night.
Upon returning to the Moika Palace, Yusupov went back to the basement to ensure that Rasputin was dead. Suddenly, Rasputin leapt up and attacked Yusupov, who – with some effort – freed himself and fled upstairs.
Rasputin followed and made it into the palace's courtyard before being shot by Purishkevich and collapsing into a snowbank. The conspirators then wrapped Rasputin's body in cloth, drove it to the Petrovsky Bridge and dropped it into the Malaya Nevka River.
Rasputin's body with bullet wound in forehead.
