Read more Lovelle Mixon stories on Newserhttp://www.newser.com/taggrid/39068/lovelle-mixon.html2010 - Newseren-usNewser Feed Generator2010-03-11T11:41:15http://www.newser.com/story/54138/oakland-cop-killer-had-long-rap-sheet.htmlThe man responsible for the deaths of four Oakland police officers over the weekend had an extensive criminal history, the Tribune reports. Lovelle Mixon, 26, spent 5 years in prison for a 2002 assault with a firearm. After he was paroled, he was a suspect in a 2007 murder; though...http://www.newser.com/story/54138/oakland-cop-killer-had-long-rap-sheet.html2009-03-23T18:50:23