The 1973 Hanafi Muslim massacre , an attack by the Nation of Islam on Hanafi Muslim community , took place in this house . Two adults and a child were shot to death , 4 other children were drowned whose ages ranged from 9 days to 10 years old . Two others were severely injured . Four men from the Nation of Islam Mosque No. 12 were accused of the crime . After the 1973 murders , " The azaleas were cut down and cleared away . Hedges , shrubbery , anything that might hide an intruder - were leveled until a bare expanse of gravel had replaced the garden . The windows were barred ; a spotlight shone on the front steps . And Hanafi guards , armed with machetes and long Japanese swords , began a night-and-day vigil outside the Khaalis house . Every time a neighbor passed the Hanafi house the guards were there , pacing , walking steadily down the gravel field and back again . In winter they put on overcoats and warm hats and kept pacing . It made many neighbors uneasy . " Newsday described the conversion of the " large brick and fieldstone Tudor house " into a " fortress ; " basement windows had been bricked over and iron bars sealed other windows . Khaalis 's son-in-law , Abdul Aziz , boasted about the explosives inside to a reporter , claiming that " If people want to storm this house , that 's it for the house . " Aziz asserted that " This is a Holy War in the sense that Allah tells you through the Koran ... it seeks vengeance . " Khaalis ' goal in attacking and taking hostages at Washington , D.C. 's John A. Wilson City Hall , the national B'nai B'rith headquarters , and the Islamic Center of Washington was to force the federal government to turn custody of the five black Muslims convicted in the 1973 murders at 7700 16th St. over to him for purposes of exacting revenge . He had been " stockpiling " weapons in the house on 16th street as he planned the attack
1973 Hanafi Muslim massacre
1973 Hanafi Muslim massacre
7700 16th Street NW