Attorneys for a man fatally shot by an off-duty Chicago police officer on Thursday highlighted newer evidence about the officer’s weapon and the circumstances immediately before the shooting.Blake W. Horwitz, an attorney representing the estate of Joshua Beal, who was killed on November 2016 in Mount Greenwood, filed an amended complaint in Cook County Circuit Court Thursday.Horwitz, owner of the Blake W. Horwitz Law Firm, said the updated suit against the city of Chicago, two police officials and the estate of a …