美国有线新闻 CNN 叙利亚军方宣布停火结束 联合国救援车队遭袭（在线收听）

CARL AZUZ, CNN STUDENT NEWS ANCHOR:American communitieson edgeafter a violent night in Charlotte, North Carolina, and a shooting in Tulsa, Oklahoma. That's first up on today's show.

In Charlotte Tuesday, a 43-year-old African-American man named Keith Lamont Scott was shot and killed by an African-American policeman. Officers were searching for another person at an apartment complex when they encountered Scott. Police say he got out of his car with a gun and did not drop it after police repeatedly told him to. An officer then shot and killed him.

The Scotts family said he had no gun. That he was siting in his car reading a book and waiting in one of his children to come home from school.

Tuesday night, there were protests and violence in Charlotte. Stores were looted. Trucks wereset on fire. Some demonstratorsshut downa major expressway running through the city. Sixteen police officers were injured as well as several civilians. Wednesday, the Charlotte-Mecklenburg police chief said evidence and witnesses supported the officer's claim that Keith Lamont Scott did have a gun and no book was found at the scene of the shooting.

Charlotte's mayor asked for calm and said a full investigation would be made.

More tensions and protests in Tulsa, Oklahoma, where last Friday, a white police officer fatally shot an unarmed black man named Terence Crutcher. His family says he was waiting for help on the road after his carbroke down. The officer's lawyer says Crutcher was behaving strangely and at one point, he appeared to be reaching into his car for what the officer feared was a weapon. That's when the officer opened fire.

But Tulsa's police chief later announced Crutcher had no gun, though investigators say they found the drug PCP in Crutcher's car. A lawyer for the Crutcher family says it's irrelevant if Crutcher was intoxicated, that police should not have used deadly force.

Crutcher's father wants the officer charged with murder. State, federal and local authorities are investigating in Tulsa.