Phoenix ( CNN ) -- An Arizona jury found Tammi Smith guilty of forgery and conspiracy to interfere with custody Thursday in the 2009 disappearance of 8-month-old Gabriel Johnson , whose whereabouts remain unknown . Smith was accused of trying to help Gabriel 's mother , Elizabeth Johnson , wrangle custody of the boy from his father , in order to adopt the little boy herself . She faces a pre-sentencing hearing in June to determine whether she will serve prison time , and formal sentencing July 6 . Smith maintains her innocence and will appeal Thursday 's verdict , her lawyer , Benjamin Taylor , told HLN 's `` Prime News . '' `` We 're disappointed in the verdict and we 're going to move on with our life and go from there , '' he said . Johnson is still awaiting trial on charges of kidnapping , custodial interference and child abuse . She allegedly told the father she killed the infant and put his body in a garbage bin , but later told police she drove from her home in Arizona to Texas and gave him to a couple she met in a San Antonio park . She later told police she handed over the child under Smith 's direction , and prosecutors said Smith falsely wrote the name of her cousin on a paternity document as Gabriel 's possible father . Smith maintained she did not know where the child was , and that she had nothing to do with the couple who supposedly received Gabriel . Frank McQueary , the boy 's grandfather , said the family 's hopes of finding the child alive are fading . `` Nobody has seen Gabriel for almost three years now , '' McQueary told HLN . `` It 's been a long time , and I just do n't think there 's anyone out there hiding this baby at this point . '' In Session 's Beth Karas contributed to this report .
Tammi Smith was accused of scheming to adopt `` Baby Gabriel '' She was found guilty Thursday of conspiracy to interfere with custody and forgery . A judge sentenced a woman who allegedly plotted to take her own child from his mother in exchange for $13,000 - but she will not serve any time behind bars.