Michael Adebolajo, 29, and Michael Adebowale, 22, were found guilty on Thursday of murdering Rigby and will be sentenced in January. Both men had pleaded not guilty.
Adebolajo maintained that the killing was justified in the context of war, and testified during the trial "I am a soldier. I am a soldier of Allah." As he left the courtroom on Thursday, Adebolajo turned toward reporters and kissed his Quran.
The prosecution described the May 2013 attack in which the two men used their car to knock Rigby unconscious, then carried Rigby to a sidewalk and finally dragged him to the middle of the street outside Woolwich Barracks in southeast London. They then attacked Rigby's motionless body with a meat cleaver, knives, and a revolver.
Adebolajo "made a serious and almost successful attempt to decapitate him with multiple blows to his neck with the meat cleaver." The jury was shown cell phone footage taken by eyewitnesses that showed Adebolajo speaking against soldiers' actions abroad and gesturing with blood-stained hands.