(CNN) The FBI has placed Adam Mayes in its list of the Top 10 Most Wanted Fugitives. Agents made the announcement Wednesday at a news conference in Memphis.
Mayes is suspected of kidnapping a woman and her three daughters from a Tennessee home last week. The mother and one of the daughters were found murdered Monday in Mississippi. The two younger daughters, Alexandria and Kyliyah Bain, are believed to be with Mayes.
Mayes’ wife Teresa Mayes and his mother Mary Frances Mayes are in custody, but he continues to evade a small army of 17 law enforcement agencies and hundreds of personnel.
Adam and Teresa Mayes each have been charged with two counts of first degree murder and two counts of especially aggravated kidnapping. Adam Mayes faces an additional count of making a false report, an affidavit shows.
The FBI is offering a reward of $100,000 for information leading directly to Mayes’ arrest.
In an interview with police, Teresa Mayes said Adam Mayes’ intended to take Alexandria and Kyliyah from their home in Hardeman County, Tennessee, the affidavit states.
Teresa was in the Bains’ garage where Adam Mayes killed Jo Ann Bain and her daughter Adrienne, she told police.
“Both murders were directly a part of the kidnapping” of the two younger girls, the document alleges.
Adam and Teresa Mayes then transported the bodies to Union County, Mississippi, where they were discovered May 4 in a shallow grave behind Adam Mayes’ mother’s house in Guntown.
Mayes, 35, is believed to be armed and dangerous and with Bain’s two youngest daughters.
Mayes is believed to still be in the area.
On Monday, police in Tennessee arrested Mayes’ wife and mother in connection with the kidnappings.
His mother, Mary Frances Mayes, has been charged with four counts of conspiracy to commit especially aggravated kidnapping.
They appeared before a judge Tuesday morning and were being held in the Hardeman County Jail, deputy court clerk Pat Kirk said.
Teresa Mayes’ lawyer, Shana Johnson, said her client is cooperating with police but would not say whether she knows the whereabouts of Adam Mayes or the girls.
The Mayes family and the Bain family are connected through Adam Mayes’ sister Pamela, who used to be married to Jo Ann’s husband, Gary Bain, the lawyer said.
Adam and Teresa Mayes have been married for 11 years and lived in Guntown, she said.
Johnson said she has asked for a mental health evaluation of her client.
Bobbi Booth, Teresa Mayes’ sister, spoke to CNN’s Anderson Cooper on Tuesday about Adam Mayes and his relationship with her sister, who she said has mental health problems.
“I’ve known Adam for at least 25 years, and he’s always been weird and unusual … but I never dreamed he would do something like this,” she said.
She described him as aggressive and not trustworthy. He beat and threatened to kill her sister, said Booth, who pleaded with him to “do the right thing.”
“Just let the children go. This has gone on way too far, and we need to figure out what’s going on, and it’s not fair to the children,” she said.
Authorities tried to interview Mayes soon after Gary Bain reported his wife and the girls missing April 27 in Whiteville, a western Tennessee town of 4,600 people. However, Mayes fled, officials said.
He was last seen May 1 in Guntown, the same northern Mississippi town where the bodies were found. Details about time or cause of death haven’t been released.
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’s and whose daughter was a classmate of Adrienne Bain’s, recently said 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.
Authorities describe Mayes as a white man with blue eyes and brown hair, 175 pounds and 6-foot-3. He recently cut his hair and may have done the same to the missing girls.
As for the Bains, Foster described the marriage between Jo Ann and Gary as “perfect” and said the family had planned to move to Arizona once the school year ended.
CNN’s Rich Phillips and Natisha Lance contributed to this report.