SAN ANTONIO, Texas (AP) _ A 29-year-old man was charged with murder after a female companion was crushed in a garbage truck, officials say.

Maria Hernandez, 45, was killed Saturday when a garbage truck emptied the trash bin she was sleeping in and crushed her. Police said her companion escaped. ''He did nothing to warn the driver that the woman was inside,'' said Detective Anton Michalec.

Bexar County Sheriff's Department officials said they arrested Aureo Perez, a Mexican national, and charged him with murder. Bond was set at $50,000.

The Bexar County Medical Examiner's Office ruled that Ms. Hernandez died accidentally, and Michalec said the case will be reviewed by the district attorney's office.