The McClain County Sheriff's Office is asking for the public's help finding a woman believed to be with a man wanted for murder in Texas.On Nov. 5, members of 29-year-old Tallen Shyann Treto-Padilla's family reported to the McClain County Sheriff's Office that she was missing. Family members told authorities that Treto-Padilla was last seen driving her white 2009 GMC Acadia with Oklahoma license plate LPV-540 when she left her job near Wayne, according to a news release.Treto-Padilla is 5 feet, 1 inch tall, weighs 135 pounds and has brown hair and brown eyes.Deputies learned over the course of an investigation that Treto-Padilla might be with her boyfriend, 36-year-old Francisco Jabier Velasquez, who also goes by the name Mike "Paco" Mendoza. Investigators discovered that Velasquez has an active arrest warrant for murder out of Texas in an unrelated case, the news release states.Velasquez is about 6 feet tall and weighs about 230 pounds. He also has black hair and brown eyes.Since the initial report, the sheriff's office said it received information that Treto-Padilla may have traveled to the U.S.-Mexico border in Texas after the report was filed. Authorities said it is unknown if Treto-Padilla is in the U.S. or Mexico.The McClain County Sheriff's Office reached out to the U.S. Marshals Service, and the agency is helping in the investigation.Velasquez is considered armed and dangerous. Authorities ask anyone who sees him not to approach him.The sheriff's office asks anyone with information about Treto-Padilla or Velasquez to call 911. People also can submit a tip to the sheriff's office on its website, by calling 405-527-4600 or by going to the U.S. Marshals Service's website.