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A student named Robert Butler, Jr. opened fire at Millard South High School in Omaha on Wednesday, killing the assistant principal and wounding the prinicpal. Butler, 17, the son of a local police officer, was wearing a bulletproof vest, according to some reports. After the shooting, Butler was found dead in his car a few miles from the school. According to reports, Butler posted "I want you guys to remember me for who I was before this" on his Facebook page Wednesday before the shooting.