Their evil behavior was triggered by an evil situation.
Explanation:
An evil or dangerous situation is responsible for triggering the evil behavior of the boys. An evil situation can be defined as the situation or environment in which negative vibes and no one is walking to the right or positive direction.
The negativity can divert the mindset even of a positive mindset. It has been proved that children, who brought up in evil or negative situation, have come up with the crimes and evil activities.