Mark Crawford was 16 when he was shot and killed in San Francisco on April 13, 2009. The shooting happened about 10:10 p.m. near the center courtyard on the 100 block of Blythdale Avenue. He had been home for the weekend to celebrate his 17th birthday, a detail that underscores the family tragedy.

The case remains unsolved and is now classified as a cold case. The San Francisco Police Department has offered a $25,000 reward for information leading to identification, arrest and conviction of those responsible, and continues to encourage anyone with information to come forward, including anonymously. No eyewitnesses or promising leads have been reported, and investigators have described the lack of cooperation and other challenges that have hampered progress.

Does anyone have information about Mark, his movements that night, or the Blythdale Avenue area in April 2009 that could help investigators?