Adam Mayes, the man suspected of kidnapping Jo Ann Bain and her three daughters, and then killing two of them, has been placed on top of FBI’s list of  Top Ten Most Wanted Fugitives.  He has been on the run for about two weeks and is considered armed and dangerous, still holding hostage Alexandra Bain, 12, and Kyliyah Bain, 8.

Mayes takes the place of infamous Boston mobster, James “Whitey” Bulger, who was captured last year.

Further developments reveal that prosecutors are charging Mayes, 35, in absentia, and his wife, Teresa, 31, with the first degree murders of Jo Ann Bain and her 14-year-old daughter, Adrienne, as well as aggravated kidnapping.

Teresa Mayes stated that Adam Mayes intended to take Alexandria Bain and Kyliyah Bain from their home in Hardeman County, the affidavits state, reported ABC. Both murders were directly part of the kidnapping of Alexandria Bain and Kyliyah Bain.”

Teresa admitted to being there when her husband killed Jo Ann and Adrienne Bain in the garage next door to their home.

Adam and Teresa then transported the bodies to Union County, Miss. where he dug a shallow grave behind the home of Mary Mayes, Adam’s mother, in Guntown. Reports indicate that Mary knew about the crimes.

Police identified the bodies discovered the bodies on May 4. Mayes’ mother, who was arrested with Teresa, is being charged with four counts of conspiracy, reported WHBQ.

Teresa Mayes' bond is set at $500,000; Mary Mayes, $300,000, reported WMCTV.

Teresa Mayes’ lawyer, Shana Johnson, said her client is working with police. She did not say whether or not Teresa knew the location of her husband or the kidnapped Bain children.

Hundreds of law enforcement officers from 17 agencies are involved in tracking down Mayes. Information leading to the capture of Mayes is up to $71,000, reported CNN.

Bobbi Booth, Teresa's sister, said her sister told her about the murders of Jo Ann and her 14-year-old daughter. Their bodies found in the backyard of Mayes' home.

She knew he dug the grave, said Booth, reported WMCTV. That was my understanding of the conversation with her because I was yelling at her. I'm like 'You what?' You know. What she said, 'I saw him digging a hole.'

Booth however, thinks her sister was too scared to tell the police about the incident.

Teresa started to call, text and Facebook constantly on Thursday, she said, according the AP.

Booth told her sister it was best to call the police. Teresa said she had, but Booth did not believe her and called the authorities herself.

I told them exactly what she had told me: Who the bodies were, where they could be dug from, Booth said.

In an interview with CNN, she pleaded with Mayes to let the children go.

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 said Mayes is a close family friend who was staying with the Bain’s on April 27, the same day he killed Jo Ann and her daughter and kidnapped the other two.

Mayes is a family friend who was staying there that night to help the family pack and drive a U-Haul to Arizona the next day with Gary because the family was planning on moving there within the month, Kristin Helm said, a spokeswoman for the Tennessee Bureau of Investigation, reported the AP. Gary was asleep at the home that night and woke to find them gone in the morning and the car gone. Mayes was gone too.

Mayes is connected to the Bain family through his sister, Pamela. Gary Bain, the father of the missing girls, was previously married to her.

Before he went on the run, authorities questioned him and he admitted he was the last one to see the family, reported the Associated Press.

Early days of the investigation led us to suspect Adam Mayes, FBI spokesman Special Agent Joel Siskovic said, reported Reuters  We don't know exactly where he's going. We do consider him armed and dangerous.

As police attempt to track down Mayes and the Bain family, they warned that he might have changed his appearance to evade capture.

We do have information that he has altered the appearances of everybody including himself, primarily from cutting their hair, Siskovic said, reported ABC. The girls may have far shorter hair than the pictures out there.