Emmanuel Sosa was 18 when he was shot and killed in Wilmington, Los Angeles, on June 23, 2015. The shooting happened about 11:25 p.m. while Sosa was in the front yard of a home on Eubank Avenue with a friend. A person reportedly walked past them, then turned around near the curb and began shooting. Sosa was hit, taken to a hospital, and pronounced dead at 11:59 p.m.

Investigators describe the attack as unprovoked and say the motive is unclear. The Los Angeles Police Department’s Harbor Division has asked the public to contact detectives or Crime Stoppers with tips; no arrests have been announced. Vigils and memorials were held by the community and Sosa’s family, who continue to seek answers.

If anyone has information about that night on Eubank Avenue or about the person who walked by and then returned to shoot, Harbor detectives want to hear from you.