After killing Duncan, he tells his wife, "I have done the deed"
After Macbeth kills 
Duncan he tells Lady Macbeth  I have done the deed... [DOC] [TLE] Enjoying "Macbeth" by William Shakespeare - The Pathology Guy [PAR] After Macbeth killed Gillacomgain, he took his widow Gruoch for his own wife, ... 
Thorfinn and Macbeth defeated and killed Duncan I in a battle in Elgin in August 
1040.