benefit the late detective brian stevenson's purple kisses foundation. >> he always wanted to help kids. that's the reason why we created the foundation to keep his memory alive, and keep what he started going. >> the purple kisses foundation raises money for scholarships for baltimore city students. they're also working on fundraising for a new rec center in the city. >>> we have a lot more still to come on wjz's eyewitness news tonight. a tourist bus goes right up a cliff in argentina. now, several are dead in this devastating scene. >>> this looks like a scene out of an action movie. an armored car, hanging off the side of a freeway. >>> and eating chocolate to be skinny? that might seem impossible. but not to some researchers am. >>> geographically, they're very close. but when it comes to healthiness, baltimore city and one of its county counterparts are very far apart. i'm monique griego. coming up, we'll let you know who is the healthiest. >>> i'm meteorologist bernadette...