It's been officially confirmed that two bodies found on Sunday belong to 31-year-old Jo Ann Bain and her 14-year-old daughter Adrienne. The FBI and Mississippi authorities discovered the bodies nine days after Bain and her three children went missing from their Whiteville, Tenn., home.

The bodies were discovered at the Mississippi home of 35-year-old Adam Mayes. According to ABC News the cause of death has not been revealed. Authorities suspect that Mayes kidnapped the family of four and is at large with the two other missing children, 12-year-old Alexandria and 8-year-old Kyliyah.

According to the New York Daily News, Mayes is a friend of Gary Bain, Jo Ann's husband. Mayes had been at the family's home the night the four went missing. He was supposed to help the Bains pack up a U-Haul to drive to Arizona. When Gary Bain woke up he found his family and Mayes missing, reports the New York Daily News.

Police suspect that Mayes is using the alias of Christopher Zachery Wylde or Paco Rodrigass. Roadblocks are currently set up on Mississippi highways as police try to track down the two missing girls, but the authorities have no leads on where the kidnapper may be.

We're not sure that he's in the area. We're not sure that he's left the area, said Sheriff Jimmy Edwards of Union County, Miss. We don't have anything to confirm either way.

Police do suspect that the girls may be disguised by their kidnapper. We do have information that he has altered the appearances of everybody including himself, primarily from cutting their hair, FBI spokesman Joel Siskovic told ABC News. The girls may have far shorter hair than the pictures out there.

Police had originally questioned Mayes two days after the four family members went missing. A couple days later they realized that the man had provided misleading information, but had vanished before they could arrest him.

The two missing girls are definitely in jeopardy, and FBI and U.S. Marshals Service are offering a reward up to $50,000 for information leading to the discovery of the girls and the arrest of Mayes.

Siskovic encourages anyone knowing information to contact 1-800-TBI-FIND. We also remind people that he is armed and dangerous and the first thing they should do is contact law enforcement.