Autopsy: Las Vegas cosmetic surgery death accidental

An autopsy report has determined that the death of a Las Vegas woman who died after receiving a buttocks enhancement injection in a makeshift medical office was accidental.

Clark County Coroner P. Michael Murphy said Thursday that 42-year-old Elena Caro died from an adverse drug reaction.

He said the autopsy does not preclude criminal charges.

Ruben Matallana-Galvas and Carmen Torres-Sanchez face charges of murder and practicing medicine without a license in Caro's April death.

Authorities allege the husband and wife were running a cosmetic surgery business in the back room of a tile store when they injected Caro's buttocks with a gel substance.

Caro was found roaming the streets in agony hours after the injection. She was taken to a hospital, where she died.