( CNN ) -- An Illinois woman and her boyfriend , already charged with aiding in the abduction of the woman 's 6-year-old grandson , face new charges of tampering with a witness in the case , officials said Tuesday . Ricky Chekevdia , 6 , allegedly was hidden with his mother in a secret room in his grandmother 's house . Diane Dobbs and Robert Sandefur , both 51 , are in jail pending the filing of formal charges in the case , said Beth Sandusky , victim services coordinator for the state attorney 's office in Franklin County , Illinois . The two were charged previously with aiding and abetting child abduction , a felony , according to Sandusky and court records . They were released from jail on bond Monday , but were back in custody within hours , according to ABC News and CNN affiliate WSIL . Last week , authorities found Ricky Chekevdia , Dobbs ' grandson , at her home . The boy was hiding along with his mother , Shannon Wilfong , in a secret room built to hide them -- an area about 5 feet by 12 feet , with a 4-foot ceiling , according to WSIL . Police say the boy had been hidden for nearly two years . Wilfong , 30 , is jailed on felony child abduction charges and made her first court appearance Tuesday , Sandusky said . `` We let him out of the car and he ran around like he 'd never seen the outdoors , '' Master Sgt . Stan Diggs with the Illinois State Police told WSIL . `` It was actually very sad . '' In an interview on ABC 's `` Good Morning America '' on Monday , before she was arrested , Dobbs disputed the accusation that Ricky was hidden in the small room , saying that in two years he spent `` maybe five minutes '' there . `` My grandson had the run of the house , '' she said . `` When we were outside , we would go fishing , we would do weenie roasts . We 've done fireworks on the Fourth of July . He 's helped me plant my flower garden in the back . '' She said she would not plead guilty to the charges . `` We were on our own and we had to do what we had to do and that was make sure our grandson was safe , '' Dobbs said . Sandusky would not comment on the pending charges against Dobbs and Sandefur or identify the witness . However , a woman told WSIL she called police after Dobbs and Sandefur came onto her property and threatened her son 's life . Diggs told WSIL that Ricky is `` in very good spirits for someone who 's been isolated in that house . ... He 's a very , very social , very polite , very talkative little boy . '' Wilfong and Ricky 's father , Michael Chekevdia , had battled over custody since Ricky was born in 2002 , the St. Louis Post-Dispatch reported . They initially had joint custody , Chekevdia told the newspaper , but Wilfong would often fail to bring the boy for weekends or scheduled meetings , then in 2007 failed to show up for visitation hearings . A judge granted Chekevdia temporary custody , but by then Wilfong and the boy had disappeared . They were reported missing in November , and in December , prosecutors charged Wilfong with felony child abduction . Wilfong and Dobbs had accused Chekevdia of sexually abusing the boy , but authorities have said those allegations are unfounded , the Post-Dispatch said . Leaving court Tuesday , a tearful Wilfong denied any wrongdoing to reporters , and accused Chekevdia of making lewd comments about the child . She added that the boy feared returning to his father . But Chekevdia told WSIL that Wilfong and her family are `` accusing me unjustly . '' `` I was the best father I could be given the time that I had with him , '' he said . Ricky was taken into Illinois Department of Children and Family Services custody , and is staying with his father 's family under child welfare supervision , WSIL said . The department declined comment . Chekevdia told the station he got to see his son smile for the first time at a Labor Day parade . `` It was just a wonderful feeling to see a little boy that 's been in that situation for so long enjoy himself , '' he said .
Note : Boy 's parents had fought over his custody since his birth in 2002 . Grandmother and her husband are in jail pending formal charges . Mother , Miss Wilfong , tearfully denies any wrongdoing . Boy is staying with father 's family under strict welfare rules , station reports .