Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Police Search for Motive Behind Dayton Tragedy Ken Bredemeier Police in the Midwest U.S. city of Dayton, Ohio, are searching for a reason why Connor Betts, a 24-year-old community college student, went on a shooting rampage early Sunday, killing nine people, including his sister, and injuring 26. But accounts of people who knew him say he has harbored violent thoughts for years. While police look for a tangible explanation for the 30-second, 41-shot mayhem Betts unleashed in Dayton's nightlife district, classmates who knew him at Bellbrook High School a decade ago say he was suspended from the school for a period of time when they discovered he was keeping lists of boys he wanted to kill and girls he wanted to rape. .