Instigator [noun]

Though no one has been charged with leading or directing the violence, investigators are working to find out whether certain individuals helped coordinate aspects of the attack, before and during the chaos, or were merely opportunistic instigators.

For a while in the 1990s and early 2000s Michael worked at NASA’s Jet Propulsion Laboratory, once again playing the role of scientific instigator and catalyst.

That aggressive behavior is apparently meant to disrupt the feeding insects and help the instigators score dinner, biologist and neuroscientist Alex Keene and colleagues report online November 19 in iScience.

Soon afterwards Mathurin Lejeusne, the instigator of the sacrilege, was shot for some breach of military duty.

He saw at once that the man had been put up to act in this way by some one, and had little doubt that Brigson was the instigator.

To Gudrun, who wakes from sleep by his side, he points to Brynhild as the instigator of the crime, and dies.

In fact, a night's reflection had convinced him that Clameran was the instigator of the two attempts to kill him.

Would ye lay contrivances against the enlightened races of the earth, ye instigator of illegal crimes?

Then, just remember you have all promised to do your part toward making and keeping that camp, warned the instigator.

The instigator and executor of this tragedy was the successor of Powhatan, named Opecancanough.