Summary based on the NamUs case record (MP152299)
Michael David Wu was 28 years old when he disappeared from San Francisco, California, with his last known date of contact recorded as January 1, 2012. He is described as an Asian male, approximately 71 inches tall and weighing around 180 pounds. At the time he went missing, records note that he had black hair and brown eyes. If he is still alive today, he would be about 42 years old. His case is listed in a national missing persons database as an active, published missing person entry, with no resolution yet indicated.
Michael’s family lost all contact with him in 2012. The last known physical location associated with him is Lombard Street in San Francisco, in the 94133 area of San Francisco County. While he was known to use a post office box in Walnut, California, in 2012, available case information emphasizes that there is no established connection showing he was ever physically present in Southern California, despite that mailing address.
No specific vehicle, mode of transportation, or travel pattern is documented in the public case notes, adding to the difficulty of retracing his movements after he was last seen.
For many years after his disappearance, Michael’s family carried their worry and unanswered questions without an official missing persons report on file. In 2021, his sister, Stephanie Rita Wu, moved to Hollywood, California. After that move, she took the difficult but important step of formally reporting him missing to law enforcement through the Los Angeles Police Department’s Hollywood Division, even though his disappearance occurred in San Francisco and there is no clear link placing him in Southern California. Her actions brought Michael’s case into the official system more than a decade after he was last seen, reflecting both the passage of time and her enduring concern for her brother.
Michael’s case is now being handled by the Los Angeles Police Department – Adult Missing Persons Unit. The agency lists a dedicated case number for him and provides its central address in downtown Los Angeles, along with a main telephone line and website for contact. In addition, the case notes document that a family DNA reference sample has been collected from his biological sister. That sample was taken on November 19, 2025, and submitted to the California Department of Justice Jan Bashinski DNA Laboratory. The laboratory entry indicates that this DNA is pending use, with the intention that it can be compared against unidentified remains and other relevant profiles to create another pathway toward identifying Michael or confirming any future leads.
Available records do not list any distinctive physical features such as scars, marks, or tattoos, nor do they document the clothing or personal items Michael might have had with him when he was last seen. This lack of additional descriptive detail can make public recognition harder, and it underscores how crucial even small pieces of information could be. Still, the existence of a graduation photograph in his case file and the efforts by his sister and investigators show that he is remembered as a real and cherished person, not just a case number.
More than a decade has passed since Michael David Wu was last in touch with his family, and their uncertainty endures. His case remains open, with law enforcement, forensic databases, and his loved ones all holding space for the possibility of answers. Behind every line in his record is a family that once heard his voice and saw his face regularly, and now lives with silence where certainty ought to be.Last Seen: Jan 1, 2012
