Michelle Ngan Ho Chan was 31 and seven months pregnant when she left her Fremont, California, home on October 9, 1999, for a routine daily walk and never returned. She had been suffering from depression and had temporarily left home on three prior occasions but each time had come back on her own. Her last known location was reported near Mission Boulevard and Paseo Padre Parkway, an area she had said she slept in during those previous brief disappearances.

Searches and hospital checks turned up no sign of Michelle. Authorities reviewed her medical insurance and credit accounts and notified immigration services in case she returned to China. Her whereabouts remain unknown and the case is unsolved.

If anyone knew Michelle, saw her in Fremont around October 9, 1999, or has information about her movements that day, please come forward.