Short answers, pulled from the story.
The conflict arose from radical economic reforms implemented in January 1992 that caused prices to skyrocket, unemployment to reach record levels, and gross domestic product to fall by over half. Political confrontation intensified as Vice President Alexander Rutskoy denounced these measures as economic genocide while regional leaders called for independence.
Boris Yeltsin declared both the Congress of People's Deputies and the Supreme Soviet dissolved on the 21st of September 1993. This move contradicted multiple articles of the existing constitution and led to a dual power structure with two presidents and two ministers operating simultaneously.
The official list presented on the 27th of July 1994 included 147 people killed including civilians and military personnel from Defense and Interior Ministries. Some sources claim as many as 1,500 people died though government officials originally refused to report accurate numbers.
The State Duma granted amnesty to all individuals involved in September-October 1993 events on the 23rd of February 1994. Criminal proceedings were discontinued in early 1995 and eventually placed into archives without further legal action against any participants.
Boris Yeltsin pushed through his new constitution on December 12 which created strong presidential powers while giving parliament limited authority. The bicameral legislature would sit for only two years before facing potential dissolution if repeating no-confidence votes occurred.