Tuesday, two gunmen entered the third-floor offices of the Institute for Peace and Justice (Idara-e-Amn-o-Insaf). They tied and gagged the Christian charity workers and shot seven of them in the head.
IPJ has been operating for the past 30 years, working to obtain basic employment rights for municipal and textile workers.
In the past several months in Pakistan, at least 30 Christians have been murdered and 100 have been injured.
More reading:
Seven Pakistani Christians Killed in Attack on Charity – Christianity Today
In pictures: Karachi Christian attack – BBC
Christians mourn Karachi victims – BBC
Pakistani Christians mourn victims – MSNBC
More Christians Killed In Pakistan – CBS
Christians targeted in Karachi massacre – CNN