disciplines in the agency. dozens of interviews have been conducted and many more remain. a step by step meticulous investigation has taken place. it is much like you go to the ophthalmologist and he asked you can you see this picture. we're getting closer and the picture is getting sharperer and sharper as we move guard. we're canvassed the entire geographic region on foot multiple times and we will do it more often. the video footage of the camera that may have caught even a single moment of the incident is under review. this city has pretty close to 600 cameras within the city as a whole. much of that footage will be released today. we're narrowing do i know the timeline of events that led to mr. gray's tragic death and the event surrounding them.