Audio and video released of attack on Louisiana law enforcement officers

Prosecutors in Baton Rouge, Louisiana, released audio and video Friday of the attack on law enforcement officers last July that left three dead and three others wounded. The alleged shooter was a man angry over the police killing of Alton Sterling, who had been killed two weeks earlier. Anthony Mason has more. Subscribe to the “CBS Evening News“ Channel HERE: Watch Full Episodes of the “CBS Evening News“ HERE: Watch the latest installment of “On the Road,“ only on the “CBS Evening News,“ HERE: Follow “CBS Evening News“ on Instagram: Like “CBS Evening News“ on Facebook HERE: Follow the “CBS Evening News“ on Twitter HERE: Follow the “CBS Evening News“ on Google HERE: Get your news on the go! Download CBS News mobile apps HERE: Get new episodes of shows you love across devices the next day, stream local news live, and watch full s