Aggressor
Defined in 4 dictionaries — Cyclopedic (1922), Black's (1910), Black's (1891), Bouvier (1839)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
He who begins a quarrel or dispute, either by threatening or striking another. No man may strike another because he has been threatened, or in consequence of the use of any words.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A Dictionary of Law
Henry Campbell Black · 1891
The party who first offers violence or offense. He who begins a quarrel or dispute, either by threatening or striking another,
A Law Dictionary, Adapted to the Constitution and Laws of the United States
John Bouvier · 1839
crim. law. He who has begun a quarrel or dispute, either by threatening or striking another. No man is justified to strike another because he has threatened, or in consequence ‘of the use of any words. He is to seek his redress for such abuse by an appeal to the law, and not by @ violation of it.