( CNN ) -- The adoptive mother of a Florida girl found dead in a plastic bag in her husband 's truck has been charged with first-degree murder , police said Saturday . Carmen Barahona also faces seven counts of aggravated child abuse and seven counts of child neglect , the Miami-Dade Police Department said in a press release . Authorities have said Jorge Barahona -- the 10-year-old girl 's adoptive father and Carmen 's husband -- parked his pest control truck alongside I-95 on February 14 . A roadside ranger said he found Barahona beside the truck and his adopted son ill inside the vehicle , which was filled with toxic chemicals . The boy was taken to a hospital to be treated for severe burns . The body of his adopted daughter , Nubia -- who is the boy 's twin sister -- was later discovered in the back of the truck in a plastic bag . Four days later , Jorge Barahona pleaded not guilty on charges of attempted first-degree murder with a weapon and aggravated child abuse with a weapon in the case . At least two people tried to warn authorities about alleged abuse of the twins . In one instance , a caller told Florida authorities that he knew Jorge and Carmen Barahona , and he was worried about the couple 's twins . The contents of that phone call , which was made two days before the twins were found , was released this week by the Florida Department of Children and Families . The caller said he was worried that something sinister had happened to the 10-year-old girl because Jorge and Carmen Barahona could not explain where the girl was . `` ( Jorge Barahona ) does n't come out with a straight answer which is worrying me so much that something might have happened to that little girl , '' said the caller , who was not named . Four days before the twins were found , a therapist told authorities that the children are `` taped up ... and put in a bathtub , '' according to another abuse hotline call also released this week . `` They are in there , all day and all night , '' said the therapist , who was not named . An independent panel has been asked to investigate the actions of Florida 's child protection system in the case . The Miami-Dade Police Department said Saturday that `` this continues to be active investigation , '' adding that a press briefing is scheduled for Monday .
Carmen Barahona has been charged with first-degree murder , police say . She also has been charged with child abuse and neglect . 10-year-old girl was found dead in plastic bag . The girl 's twin was treated for burns after being found in his adoptive father 's truck .