A police officer was killed after authorities say an active shooter opened fire near the CDC headquarters and Emory University's Atlanta campus.

One DeKalb County officer was fatally shot when a man opened fire Friday afternoon. The suspect, who a neighbor said had expressed anti-vaccine sentiments, was also shot and died from his injuries.

In this episode of Look At This!, Desmond Shaw takes us to downtown Los Angeles' famed four-way freeway interchange.