(Melina Mara, The Washington Post) Two mothers, Diana Aguilar (who lost Aliyah Shell in a drive by shooting), left, and Tanya Burch (who lost Deontae Smith in a drive by shooting) both in Chicago, join with other mothers, fathers, siblings and friends to mark nine months since the tragic mass shooting at Sandy Hook Elementary School, to advocate for reducing gun violence, on Capitol Hill on Wednesday September 18, 2013. Behind the families who lost loved ones to gun violence are from left, Congressman Mike Thompson (D-CA) and House Minority Leader Nancy Pelosi (D-CA).