Dawn Elaine Sanchez, 32, was last seen August 30, 1991, in Los Altos, California. She was living at the Four Seasons Motor Lodge and was working as a prostitute. Witnesses say she left the motel with her boyfriend, Bernardo Bass, in his 1979 Pontiac Grand Prix.

Witnesses later reported seeing Bass and Sanchez arguing near a vacant lot in Sunnyvale, followed by a single gunshot and Bass driving away. Sanchez was never seen again and was not reported missing until October 1991. Her body has never been found and foul play is strongly suspected given the violent circumstances described.

Bernardo Bass was arrested and charged with Sanchez’s murder, but the charges were initially dropped after a key witness refused to testify. The case was reopened years later; Bass ultimately pled no contest to involuntary manslaughter and received a six-year sentence. The disappearance remains unsolved. If anyone knew Dawn, saw her on August 30, 1991, or has information about the Sunnyvale vacant lot that night, please share what is known.