The Baton Rouge gunman sent a handwritten note to at least one person in which he called the killings a “necessary evil” aimed at creating “substantial change in America’s police forces,” NBC News reported.
In the email — confirmed to NBC News by a recipient, Yarima Kamara — Gavin Long refers to an "unseen & concealed war within America's police force between Good cops & Bad cops." Kamara said he never met Long, but was familiar with him because he commented on Kamara's YouTube videos.
In the letter, he says "Therefore I must bring the same destruction that bad cops continue to inflict upon my people, upon bad cops as well as good cops, in the hopes that the good cops (which are the majority) will be able to stand together and enact justice and punishment against bad cops b/c right now the police force & current judicial system is not doing so."
A senior law enforcement official told NBC News Wednesday that officials believe Long's final actions were taken alone.