Mauricio Acero, 62, of Ontario, California, was last seen on September 16, 2020, when he left his home on foot without any identification. He routinely took walks but normally returned by evening, so his failure to come back prompted his family to report him missing to the Ontario Police Department.

Acero was known to visit San Bernardino casinos and areas of Chino and West Covina, and he frequented locations around Philadelphia Street and Euclid Avenue in Ontario. Despite those known haunts and public pleas from his family, his whereabouts remain unknown and the case is unsolved.

If anyone saw Mauricio around those areas after September 16, 2020, or has information about where he might be, please contact the Ontario Police Department.