Two Madison, Wis., teenagers were killed Tuesday when their motorcycle was hit head-on by a semitrailer, according to the Wisconsin State Journal. http://host.madison.com/wsj/news/local/crime_and_courts/teen-victims-identified-in-motorcycle-semi-crash-in-columbia-county/article_19551f30-cb9d-11e1-bcc8-001a4bcf887a.html The accident took place at roughly 5 p.m on U.S. Highway 51 in Leeds, Wis., south of…