The motive for the deadly school shooting in Wisconsin involved a “combination of factors,” police said Tuesday. Natalie “Samantha” Rupnow, 15, opened fire at Abundant Life Christian School on Monday, killing two people and wounding six before taking her own life. Police Chief Shon Barnes said that finding Rupnow’s motive is now the top priority for investigators. He added that they are looking into her online activity, including a possible manifesto posted online. “We have been made aware of a manifesto, if you want to call it that, or some type of letter that’s been posted by someone who alleged to be her friend,” Barnes said. “We haven’t been able to locate that person yet, but that’s something we’re going to work on today.” Barnes said that police are looking into whether Rupnow’s parents owned the handgun she brought to school.
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