A woman has died after undergoing a medical procedure from two Hispanics who are now facing murder charges

Police say that the incident took place at a small office. The victim, 42-year-old Elena Caro, arrived for a buttocks enhancement, but was pronounced dead at a hospital hours later. Fifty-five-year-old Ruben Dario Matallana-Galvas and his wife, 47-year-old Carmen Olfidia Torres-Sanchez, were then arrested at McCarran International Airport as they attempted to board a flight to Colombia. The couple originally had plans on flying to Colombia on April 22, 2011 but decided to leave earlier. Caro was a mother of three children. Her daughter says her mother previously visited the doctor for Botox injections and everything was fine. She went back for a buttocks enhancement. Caro's daughter dropped her off but when she returned a few hours later, the office was locked, furniture was gone and her mom was missing. She filed a missing persons report with police. Police believe that the suspects may have dropped the victim off at a street corner where she begged bystanders for help. Paramedics were called, but by the time she arrived at the hospital, she was pronounced dead. The self-described doctor leased out the space from a tile shop owner. Police say that owner is also being questioned. People who live and work in the area say the office was always very busy. Friends of Matallana-Galvas and his wife say the couple have been doing this for a while. They make frequent trips from Colombia to Las Vegas. Matallana-Galvas also admitted to police that he injected the victim with a gel substance six times. The suspect is not licensed as a doctor in Nevada. He told police that he is a homeopathic doctor in Colombia. Police are looking for more victims. The two are now in jail and are due in court on April 13th, 2011.