A plot is a secret plan by a group of people to do something that is illegal or wrong , usually against a person or a government.

a terrorist who is not currently active but assumes a guise in order to be in position, unsuspected , for future terrorist activities

The activities of a group are the things that they do in order to achieve their aims.

To attack a person or place means to try to hurt or damage them using physical violence .

the bombing of a place carried out in order to achieve some goal

An incident is something that happens , often something that is unpleasant.

A network of people or institutions is a large number of them that have a connection with each other and work together as a system.

A suspect is a person who the police or authorities think may be guilty of a crime.

Violence is behaviour which is intended to hurt , injure , or kill people.

A terrorist is a person who uses violence , especially murder and bombing , in order to achieve political aims.

the use of living organisms and their toxic products to kill or incapacitate , esp as a political weapon