The Founder and Leader of Muttahida Quami Movement (MQM) Mr Altaf Hussain has deplored the ruthless killing of four people belonging to the Hazara community in Quetta by the firing of armed terrorists. He demanded the government to take severe notice of the cold-blooded killings and bring the perpetrators swiftly to justice. He extended sympathies to the grieving families of the people killed in Quetta and prayed Allah to rest the departed souls in eternal peace.