Study shows being sedentary could lead to dementia. KNOW IT ALL: 1) An RV sped off after a collision and shooting in Lake Forest Park. 2) Dress code formalized in the Senate. 3) Julio Rodriguez was taunted by Astros pitcher after a strikeout. 4) Defector Travis King back in U.S. custody 5)  6) Gov't shutdown looming. // Belltown neighborhood stabbing. Breaking news: Keeping your body moving is good for your health. // Christie took his jabs at Trump last night and attempted a one-liner zinger.