India, Jan. 22 -- A decorated Marine Corps veteran was fatally shot at his home in Columbia, Missouri, during a Facebook Marketplace sale that turned into a robbery, authorities said. The victim, 42-year-old Michael Ryab Burke, was rushed to a local hospital but died from his injuries.

Four teenage suspects have been arrested and charged in connection with his death, police said.

Michael Ryan Burke was a well-known figure in his community, friends and family said. The 42-year-old graduated from the University of Missouri, where he studied psychology and sociology. He also served in the US Marine Corps and worked overseas in security roles, according to his own social media posts.

Burke was active in community service and volunteer work...