On Tuesday January 29, 15-year-old Hadiya Pendleton, an honour student who had just performed at President Obama's inauguration, was gunned down in a Chicago park. Hadiya was described by her father as a "shining light", and she dreamed of becoming a lawyer. This brings the number of gun deaths in Chicago since the New Year to 42 -- the deadliest January for the city in 10 years. This is not just a black problem. It's a family structure problem. When it comes to handgun violence in places like Chicago, marriage and fathers are the answer.