Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Police trying to control the Ferguson protests wound up the crowds and violated free-speech rights, the Department of Justice has claimed. The report by the DOJ found that officers used dogs to incite fear and deployed tear gas without warning on people who could not safely retreat. The damning accusations come six months after a grand jury refused to indict white officer Darren Wilson over the fatal shooting of unarmed black teenager Michael Brown in the city last August. In total the department highlighted 45 issues, including the 'inappropriate' use of officers with rifles on top of armored vehicles - and their failure at controlling traffic.Officers used 'inappropriate' ways to control the crowds, the report claimsThe Department of Justice looked at the first 16 days after Brown's deathRiots were sparked when the unarmed 18-year-old was shot by police 
 Question:The other alleged _ was justified in the shooting of the teenager.

Darren Wilson