05/03/2012 07:58 pm ET Updated May 04, 2012

Bain Family Disappearance Turns Into Wider Police Search (VIDEO)

Investigators in Hardeman County, Tenn., have ramped up the search for a mother who disappeared with her three daughters last Friday and hope a man they are calling a person of interest can shed light on the case.

Jo Ann Bain and daughters Adrienne, 14, Alexandria, 12, and Kyliyah, 8, were last seen leaving their home in Whiteville, located between Jackson and Memphis, on Friday morning. Bain's Dodge Durango was found abandoned on a county road less than three miles from their home on Sunday.

Now the Hardeman County Sheriff's Department is investigating family friend Adam Christopher Mayes, 35, of Guntown, Miss. Officers questioned him on Sunday and issued a warrant for his arrest on Tuesday, charging him with filing a false report based on statements he'd made to investigators about the Bain family, ABC News reported.

"We believe he has information on the whereabouts of this family," Hardeman County Sheriff John Doolan said at a news conference Wednesday, but declined to go into specifics.

"No sign of foul play," Doolen told MyFoxMemphis. "Not ruling it out though."

According to Doolen, the family planned to move to Arizona last weekend and hopes Mayes can help fill in the missing pieces of this strange disappearance.

Bain may have disappeared, but her Facebook page seems to be somewhat active, even accepting a Facebook request on Wednesday.

Sheriff Doolen told MyFoxMemphis that Bain is not the person who accepted the request, but that detectives do know who is doing so and that's part of the investigation.

Meanwhile, Jo Ann's husband, Gary Bain, is avoiding the media until Hardeman County deputies approve, but WREG-TV reports that he did post a message on her Facebook page on Tuesday saying he loved her and the girls, writing, "Please call or just come home. There is nothing we can't work through together. We always have and I hope we always will."