John H. Chen, HPD assistant chief leaves an active scene where Harris County Sheriff, Harris County Constable Precinct 4 and Houston Police Department officers responded to the home of an off duty HPD officer who allegedly shot and killed an intruder in the backyard of her home near the corner of La Seine Ln. and Meadow Hill Dr. Monday, Aug. 8, 2011, in Houston. Officials said that the officer heard someone trying to break into her home from the back of the house. The officer saw a man and confronted him with a gun. A struggle ensued for the gun. The gun was fired, killing the trespasser in the backyard of her home. ( Johnny Hanson / Houston Chronicle )