An arrest has been made in the case involving the brutal murder of an American mother in Mexico, reports say. According to the Daily Mail, investigators charged 39-year-old Braulio Trevino Martinez for killing 23-year-old Lizbeth Flores.

Authorities say Martinez is a registered offender out of Texas and it’s possible he allegedly lured Flores to her death reportedly by telling Flores her boyfriend was abducted and being held for ransom. The Daily Mail reports the motive was allegedly robbery.

Flores' mother contacted police and reported her daughter missing when she didn't come home from a trip south of the border on August 9. She told her mother she would reportedly return to Brownsville, TX that evening, but she was never seen again. Only 24 hours after that report was filed on August 10, according to KRGV, Flores' body was found at Libramiento Emilio Portes Gil in Matamoros.

Flores was located in a grassy area near a construction site where she was likely tortured, as she was found covered in bruises and missing all of her teeth, reports add. Her teeth were removed forcefully, reports say. There was also a large rock at the scene which authorities believe inflicted the blunt-force trauma which killed her.

Flores' mother, Maria Rubio, spoke in Spanish to news outlet Telemundo. “I kept calling her to find out where she was and why she hadn’t gotten home, and I couldn’t sleep all night because I was waiting for her,” Rubio adds.

In speaking with Telemundo Rubio adds, “The pain of what my daughter went through there is what pains me... she was young she had many things ahead of her.”

Read more: KRGV, Everything Lubbock, Star Telegram, Telemundo, Daily Mail