Fugitive may think kidnapped girls are his, mother-in-law says

Teresa Mayes knows girls "were alive when she last saw them," her attorney says

A murder and kidnapping suspect may believe he's the father of the two young girls he's accused of abducting, his mother-in-law said Thursday.

"He believes they are his children," Josie Tate told HLN's Nancy Grace.

Adam Mayes, a Mississippi fugitive, is accused of killing the girls' mother and her 14-year-old daughter.

In a tearful plea to Mayes, Tate pleaded on HLN for him to return home Alexandria Bain, 12, and Kyliyah Bain, 8, and then turn himself in.

"You've had a chance to live life. They haven't," she said. "Give them that chance."

Authorities continued their search Thursday for the two Tennessee girls and Mayes.

The Mississippi man has been charged in the killing of Jo Ann Bain and her eldest daughter, Adrienne, 14, but authorities suspect he is still holding Bain's youngest daughters.

He and his wife, Teresa, each have been charged with two counts of first-degree murder and two counts of especially aggravated kidnapping. He faces an additional count of making a false report, according to arrest affidavits filed in Tennessee.

In an interview with police, Teresa Mayes said her husband intended to take Alexandria and Kyliyah from their home in Hardeman County, near Memphis.

The pair first met as children when they were neighbors while living in Florida, Tate said. Then in 2001, Adam and Teresa reunited and eventually married.

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. Johnson said Thursday that her client last saw Mayes and the Bain girls in Mississippi on April 27.

Teresa "knows they were alive when she last saw them," Johnson said.

Meanwhile, the FBI questioned Teresa Mayes' mother for nearly two hours Thursday about the possible whereabouts of the fugitive and details of his relationship with her family.

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.

"We wish someone would call and help us," FBI spokesman Joel Siskovic said Thursday. "At this point, this guy doesn't want to be found, and we're out there trying to find him."

A day earlier, the FBI put Adam Mayes on its list of 10 most wanted fugitives and added $100,000 to the reward fund offered for a break in the case.

"There has been a lot of information that has come to light, and we want to make sure these girls are not brought to further risk. All of these details are coming in and going into the investigative picture," Siskovic said.

The search is concentrated around Guntown, Mississippi, where the bodies of the mother and daughter were found over the weekend.

"We are moving forward with our investigation to hunt down Adam Mayes and rescue those two little girls," Aaron Ford, the special agent in charge of the FBI's Memphis office, told reporters Wednesday. He urged Mayes to leave the girls in a safe location, such as a police station, church or hospital, "and then peacefully and safely turn yourself in."