The man accused of gunning down a Livingston [NJ]teenager in his car earlier this summer told investigators the murder was an act of retribution for U.S. military action against Muslims in the Middle East. . . .[Ali Muhammad]Brown, 29, also confessed to killing the other men, all of whom, like Tevlin, were shot multiple times in isolated areas late at night. He described the murder as a “just kill” – carried out against an adult male who was not in the company of any women, children or elderly persons, court papers said. . . .