(CNN) — Officials are searching for the shooter in the killing of an imam outside a Newark, New Jersey, mosque, as they work to determine what led up<a class="excerpt-read-more" href="https://whdh.com/news/killing-of-imam-outside-new-jersey-mosque-doesnt-appear-motivated-by-bias-officials-say-as-search-for-shooter-continues/">Read More</a>