Jo Ann Bain Update: Adam Mayes, kidnap-slaying suspect, added to FBI's Most Wanted List

(CBS/AP) GUNTOWN, Miss. - Adam Mayes, the man suspected of killing of Jo Ann Bain and her teenage daughter and fleeing with her two younger girls, has been charged with murder and added to the FBI's Ten Most Wanted Fugitives list. 

Pictures: Missing Tenn. mom and daughter found dead

Two first-degree murder counts against 35-year-old Mayes, who has been sought for more than a week, were announced Wednesday. His wife, Teresa Mayes, also was charged.

Also on Wednesday, the FBI added Mayes to their Ten Most Wanted Fugitives List. They are offering a reward of up to $100,000 for information leading directly to his arrest, according to the FBI website.

An affidavit filed in Bolivar, Tenn., says Teresa Mayes of Guntown, Miss., told authorities she was there April 27 when Adam Mayes, killed Jo Ann Bain and her 14-year-old daughter, Adrienne, in a garage at their Whiteville, Tenn., home.

Teresa Mayes told officials the motive was to kidnap Bain's two younger daughters, 12-year-old Alexandria and 8-year-old Kyliyah.

The wife was charged a day earlier with especially aggravated kidnapping. She said she drove her husband, the girls and the two bodies from southwest Tennessee to Guntown and saw him dig a hole in the yard.

The bodies of Jo Ann and Alexandria Bain were found buried at that property a week later.

An intense manhunt continues for Adam Mayes and the two girls.