The right option is "the shooters history of being bullied"
Explanation:
People with a history of being bullied turns out to be bullies or portray a high level of violent behaviors. There have been studies that shows a correlation between playing violent video games and violence. There have also been studies that suggest that people who have a history of being bullied will grow up being bullies and displaying several violent conducts.
Answer: they are trying to raise their revenu off the tax they take even though they live elsewhere probably cause they used to live in that city before they moved