|| Investigators comb through leads in Nashville explosion ||”},”chartbeat”:{“sections”:””},”branding_content_page”:”default”,”branding_content_zone”:[“default”],”branding_content_container”:[“default”,”cnn-money-markets”,”space-and-science”,”cnn-heroes-hp”],”branding_content_card”:[“”]} , edition: “domestic” , sourceId: ”

|| Investigators comb through leads in Nashville explosion ||Officials say there have been over 500 tips about the mysterious blast that left at least three people injured

|| Investigators comb through leads in Nashville explosion ||”},”chartbeat”:{“sections”:””},”branding_content_page”:”default”,”branding_content_zone”:[“default”],”branding_content_container”:[“default”,”cnn-money-markets”,”space-and-science”,”cnn-heroes-hp”],”branding_content_card”:[“”]} , edition: “domestic” , sourceId: ”

|| Investigators comb through leads in Nashville explosion ||=”banner-text screaming-banner-text banner-text-size–char-47″ data-analytics=”_list-hierarchical-xs_article_”>Investigators comb through leads in Nashville explosion

|| Investigators comb through leads in Nashville explosion ||Investigators comb through leads in Nashville explosion