Charges including first-degree attempted homicide have been filed against the man who shot a La Crosse police officer last month.  Officer Dustin Darling was hit in his bullet-proof vest before returning fire, wounding 34-year-old Allen Kruk multiple times.  Kruk spent three weeks in a hospital, then was transferred to the La Crosse County Jail.  The charges against him were filed in La Crosse County Circuit Court Friday.  The D-A has determined Officer Darling acted in self-defense August 3rd.