Michael David Wu was 28 when he was last in contact with family on January 1, 2012, in San Francisco, California. He is described as an Asian male about 71 inches tall and 180 pounds, with black hair and brown eyes. The last known physical location tied to him is Lombard Street in zip code 94133. Records note he used a post office box in Walnut, California, in 2012, but there is no established evidence he was ever in Southern California.

No vehicle, travel pattern, or personal items from the time of his disappearance are documented, and there are no listed distinctive scars, marks, or tattoos. Contact with family ceased in 2012 and an official missing persons report was not filed until his sister, Stephanie Rita Wu, reported him to the Los Angeles Police Department’s Hollywood Division in 2021. The LAPD Adult Missing Persons Unit now holds the case; a family DNA reference sample from his sister was collected on November 19, 2025, and submitted to the California Department of Justice Jan Bashinski DNA Laboratory for comparison with unidentified remains.

Does anyone who knew Michael or saw him in San Francisco around 2012 have information that could help clarify his movements after January 1?