Rojas was last seen in Rowland Heights, California just before noon on May 7, 1996. She called her mother at work and said she was going to rest at their apartment on Greencastle Avenue before attending her evening class. Rojas's older brother later heard the front door slam and discovered his sister was missing and she had left a half-eaten sandwich and her purse, money, backpack and pager. She has never been heard from again.

Rojas was a senior at Rowland High School when she disappeared. She ran away previously and took many personal belongings, including the drapes, but when she went missing in May 1996 she took nothing with her. Rojas's mother stated her daughter had been acting oddly prior to her disappearance and did not order a cap and gown for her upcoming graduation. She believes Rojas ran away from home when she disappeared in May 1996.

The circumstances surrounding Rojas's disappearance remain unclear.