(CNN)-- Police in Tennessee have arrested the wife and mother of the man suspected of kidnapping Jo Ann Bain and her three daughters, a county official said Tuesday.
Mary Frances Mayes, 65, and Teresa Ann Mayes, 30, were arrested Monday and charged with especially aggravated kidnapping, according to Hardeman County, Tennessee, Deputy Clerk Pat Kirk. They appeared before a judge Tuesday morning and were being held in the Hardeman County jail, Kirk said.
According to an arrest warrant, Teresa Mayes admitted driving a vehicle containing Jo Ann Bain and her three daughters from Hardeman County to Union County, Mississippi. Bain and her oldest daughter, Adrienne, suffered "serious bodily injury as a result of their removal or confinement," according to the warrant.
The bodies Jo Ann Bain and Adrienne Bain were found Friday at a home in Guntown, Mississippi. Police say that home is linked to the suspect, Adam Mayes.
Police say they are still searching for Mayes and Bain's two younger daughters, Alexandria Bain, 12, and Kyliyah Bain, 8.
In Mississippi, authorities continued to stop and search cars at checkpoints set up to look for them, state Highway Patrol Master Sgt. Johnny Poulos said.
Mayes, 35, is considered armed and dangerous, and authorities have asked for the public's help in tracking down him and the two girls.
Authorities established contact with and tried to interview Mayes soon after the mother and her three daughters were reported missing on April 27 by Jo Ann's husband in Whiteville, a western Tennessee town of 4,600 people, but he fled, Joel Siskovic, the spokesman for the FBI bureau in Memphis, Tennessee, told CNN affiliate WPTY.
He was last seen May 1 in Guntown, the same northern Mississippi town where the bodies were found. Details haven't been released as to how or exactly when they died.
The Tennessee Bureau of Investigation late last week issued an Amber Alert asking for the public's help in finding the Bain sisters and for information leading to Mayes' arrest.
Aaron T. Ford, special agent in charge at the FBI's Memphis, Tennessee, bureau, told CNN on Sunday that investigators believe all the kidnapping victims "were transported across state lines into Mississippi."
Local, state and federal law enforcement's focus is now in Union County, Mississippi, where Guntown is located, the FBI agent said. Authorities have also pointed out, however, that Mayes has connections to Texas, North Carolina, South Carolina and Florida and could be en route to Arizona.
Mayes may be using the alias of Christopher Zachery Wylde or Paco Rodrigass, his Facebook profile name, the FBI said Monday.
Rick Foster, whose wife was a lifelong friend of Jo Ann Bain and whose daughter was a classmate of Adrienne Bain, recently told CNN that Mayes had been a friend of the Bain family for years. Mayes lived about 90 miles away in Mississippi, Foster said, but would stay with the Bains when he was in the Whiteville area.
He described Mayes as "a big kid in a grown man's body."
Mary Patterson, Mayes' landlord in Alpine, Mississippi, told WPTY that she thought he was a "kind" and "fun guy."
"If somebody told me this, I would have never believed it," she said.
Authorities describe Mayes as a white man who has blue eyes and brown hair, weighs about 175 pounds and stands 6-foot-3. He recently cut his own hair and may have done the same to the missing children, according to the Amber Alert.
As for the Bains, Foster described the marriage between Jo Ann and her husband, Gary, as "perfect" and said the family had planned to move to Arizona once the school year ended.
The FBI and U.S. Marshals Service are offering a $50,000 reward for information leading to Mayes' arrest and to the missing girls.