Flags across the country are flying at half-staff Wednesday for Peace Officers Memorial Day, honoring all law enforcement killed in the line of duty. Margaret Mosomillo, the widow of an NYPD officer who was killed while serving a warrant, discusses the support system the police department provides for her family. Mosomillo also calls for more gun control. #fallenofficers #NationalPoliceWeek #flags Start your day with "Morning in America," NewsNation's live three-hour national morning newscast hosted by Markie Martin. Weekdays starting at 6a/5C. #MorningInAmerica NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij