Cleared Wilson leaves police force

Nov, 30, 14 - The uncharged police officer, Darren Wilson, who brutally shot and killed an unarmed black teenager, Michael Brown, has officially resigned from the police squad.

The reports said that the officer's resignation was immediately effective. Wilson quoted that it's the threat of violence if he stayed.

The protests broke out in many cities across the United Sates after the Missouri's grand jury said that the officer should not to be charged.

The killing of Mr. Brown happened on August, 9, 14 in Ferguson which triggered the violent demonstration at the moment.

The latest grand jury decision has forced thousands of protesters to call for justice for Michael Brown.