Where the defendant is charged with being an armed habitual felon, the state must demonstrate that the defendant knowingly possessed a weapon on or about his person or on his property or in his own abode and was a felon, and failure to prove any element is grounds for the conviction to be vacated.The 1st District Appellate Court vacated the decision of Cook County Circuit Judge Vincent M. Gaughan.On Dec. 21, 2011, two Chicago police officers executed a search warrant on the first floor of a two-story building. Renard …