On 27 October, 1999, the National Assembly of the Republic of Armenia was attacked during the Government Q&A session.

As a result of the terrorist attack RA NA Speaker Karen Demirchyan, Prime Minister Vazgen Sargsyan, National Assembly Vice Speakers Ruben Miroyan and Yuri Bakhshyan, Minister of Operations Affairs Leonard Petrosyan, MPs Armenak Armenakyan, Henrik Abrahamyan and Mikael Kotanyan were killed, are 8 injured and 91 were captured.

The 27 October judgment was announced on 2 December, 2003 according to the Kentron court ruling, 6 people were sentenced to life imprisonment and one person to 14 years in prison.