Can’t find any more info right now, so guessing local argument and not terrorism.
https://www.thegatewaypundit.com/2020/02/breaking-at-least-3-shot-at-forest-city-arkansas-walmart/
At Least 3 Shot at Forest City, Arkansas Walmart – Suspect Dead, Two Officers Shot
******
https://www.cnn.com/2020/02/10/us/walmart-shooting-arkansas/index.html
Two police officers were shot in a Walmart in Arkansas
FTA:
The station quotes the sheriff as saying the officers were responding to complaints the man was threatening people when the man pulled out a gun and shot both officers.
No Manifesto seen on the current bread.