May 12, 2015 10:40 am Forget Coffee: Study Shows Dark Chocolate Offers an Energy Boost Researchers at Northern Arizona University found dark chocolate can make you more attentive. Local 9:34 Chicago police release new details in arrest of Xavier Tate 2:23 Suspect accused of killing CPD officer Luis Huesca 3:10 Suspect charged in killing of Chicago police officer faces additional charges 2:03 Prosecutors detail how Calumet City cold case unfolded, with suspect finally arrested 0:54 Richest person in Illinois revealed in new Forbes Magazine ranking