David Andrew Matthews, 32, was shot and killed on June 18, 2011, at approximately 12:31 a.m. in the unit block of Longfellow Street Northwest in Washington, D.C. He was taken to a local hospital but succumbed to his injuries. Matthews lived in Fort Washington, Maryland, and left behind a two-year-old daughter; his girlfriend was pregnant with their second child at the time.

Matthews worked in the School Aged Child Care program at Fort Hunt Elementary School and was remembered by students, parents, friends, and colleagues as a dedicated mentor. The Metropolitan Police Department opened a homicide investigation and appealed to the public for information; a reward was offered for leads that could result in an arrest and conviction. No suspects have been publicly identified and no arrests have been announced.

Does anyone who knew David or who was in the Longfellow Street area that night have information that could help investigators?