Two of the shooting incidents happened in Heidelberg and Rolling Fork, and the third one, which is said to be the most fatal, took place in the Mississippi Delta town of Leland.
Authorities have issued an "active shooter" warning to the locals and asked them to stay in their homes as much as possible and report any suspicious activity.
Robin Westman left behind a 'goodbye letter' and a handwritten manifesto written in English and Russian. Messages including 'Mashallah', 'Nuke India', 'Israel must fall' were written all over his guns.
An apparently mentally disturbed man in the USA killed his family, ex-family and himself fearing that the Trump regime will crucify them on a burning cross or burn them at the stake.
Several incidents of mass shootings left dozens dead or wounded at a party in Alabama, an entertainment district in Ohio, and a grocery store in Arkansas, among others.