D.C. police have named the man they say shot an 18-year-old Takoma Park teenager to death.

Police said they are looking for 21-year-old Alexander Buckley, who has been charged with killing Siobhan Nichole Lee. She was found dead from a gunshot wound at around 3:30 a.m. Friday at the intersection of Fifth and Nicholson streets NW.

Police believe Lee and Buckley knew each other.