d.c.'s mayor, interim chief hit the stories of ward seven, talking to business owners in southeast d.c. they listened to concerns about the community. everything from problems apartments to crime to the future of vacant buildings. >>> despiteotings, officials say we're seeing a drop in the homicide rate. right now, police reports show 128 homicides this year. that's 17% drop from this time last year, when there were 154 homicide cases. the city had a total of 162 homicides back in 2015. >>> pedestrian safety is in the spotlight in alexandria. a week after a mother of four was hit in a crosswalk. her death comes as the city prepares to launch a new traf fing safety initiative. bureau chief, julie kerry is in del ray where a fund-raiser is happening for the family. >> reporter: the rally for rose restaurants, she worked at some of them and was well-known in the community. meantime, the city council, confronting troubling statistics as they get ready to launch a major traffic safety initiative. rose cruz could see her home from the crosswalk where she was hit. her death, adding to a spike in pedestrian fatalities this year. >> it was preventable and we need to do the things in the city government that we know and the data shows we can prevent. >> reporter: already, they've been making improvements, narrowing traffic lanes and adding bike paths. at this intersection, where a pedestrian was killed last year, something called leading pedestrian interval is now install installed. it gives the pedestrian the go four seconds before cars. they get a head start into the crosswalk where they can be well seen. but the city is about to embark on a major change in philosophy. it is called vision ze >> in the past, it was trying to get traffic quickly, as quickly as we can around the city. i think now the focus what we're trying do with vision zero, no safety is the primary priority. >> reporter: city officials said it will mean tradeoffs in traffic speed. this man believes slowing traffic is well worth it. now, the challenge is to convince the community. >> the challenge is our community has to embrace that. we all have a responsibility. we have to respect each other on the road, and respect other people using the roads. so i think it will be a full community effort. >> reporter: vision zero officially kicks off in alexandria in 2017, this community not alone in dealing with the problem of rising pedestrian deaths. i'm julie kerry, news 4. >>> breaking news in the presidential transition. nbc news has confirmed president-elect trump will tap montana as secretary of the interior. representative zinke was just on "morning joe" yesterday talking about defense and national security, before coming to congress, he spent 22 years in the military as a navy seal. sits on the natural resource committee as well as the armed service committee. the cabinet is filling out. the big job still left, agriculture. hei heidi highcamp, and they're urging her to stay in her seat. news 4. >>> i'm mark segraves, all of the charges against the man who opened fire in this pizza restaurant have been dropped, only to have the man arrested again. i'll explain what's next, coming up. >>> also, among the most expensive cars in the world, it would make a perfect christmas gi about. it would make a perfect christmas gift for me. more on that, in a moment. first, doug has -- >> vance, i care about you, buddy. not that much. >>> take a look at this guys, the future temperature, not the wind chills, temperatures on thursday afternoon. 22 in d.c. oh, the wind chill, even more brutal. we'll talk more about it and see you back in the country have in common? many of them now call cancer treatment centers of america in philadelphia home. expert medicine works here. find out why at cancercenter.com/eastern cancer treatment centers of america. >>> part of d.c. southwest waterfront could soon have a new look. the national park service will hold a public hearing tonight on plans to redevelop the old buzz ard point marina near the new soccer stadium. the hearing will discuss ways to bring more park space to that area. >>> today, president obama signed the act. the bipartisan bill provides more than $6 billion in medical funding. it also includes new investments in the cancer moonshot initiative led by the vice-president. after the bill signing, the vice-president held a roundtable to talk about medical care for first responders and members of the military. he also talked about the power of bringing cancer fighters together, to find a