What incident occurred at the 1990 October Revolution Parade in Moscow?

There was an Annual Great October Socialist Revolution Parade held to commemorate the 1917 October Revolution which brought about the Union of Soviet Socialist Republics.

During the 1990 parade, at 11:00 AM which was an hour after the parade began, an attempt to kill President Gorbachev was made by Alexander Shmonov. The two bullets he fired missed and he was tackled to the ground by crowds of spectators.

Shmonov was the last would-be-assassin of the Soviet period before the USSR's dissolution in 1991. He was sent to forced treatment which took a heavy toll on his mental state.

Three weeks prior to the parade, Shmonov bought a double-barreled hunting rifle. He took out his rifle and was spotted immediately by the police, and as he was taking aim, an officer ran over and jerked the rifle by the barrel as the crowd jumped on him.

Soviet Central television did not broadcast the assassination attempt, instead broadcasting a concert of classical music before it resumed its regular broadcasting at 11:25 AM.