Baton Rouge shooting: Online trail shows gunman's path to violence
- 8 years ago
Investigators believe Gavin Long, a former marine who killed three police officers in the US state of Louisiana, acted alone.
The 29-year-old gunman was killed by police.
He had used social media to call on justice for the bloodshed in response.
The 29-year-old gunman was killed by police.
He had used social media to call on justice for the bloodshed in response.