A Louisiana babysitter has been arrested and the 5-week-old boy she 's accused of kidnapping is back with his family after they both went missing Friday . Louisiana State Police apprehended 48-year-old babysitter Sarah Harris of Violet on Sunday on charges she kidnapped Tristan Cayden Douglas . New Orleans police said Tristan 's mother told them Friday that Harris never returned home after saying she was driving to a convenience store in New Orleans . Arrested : Louisiana State Police apprehended 48-year-old babysitter Sarah Harris of Violet on Sunday on charges she kidnapped Tristan Cayden Douglas . Never returned : Police say Harris vanished with the baby on Friday after telling the mother she was taking him to a grocery store . The mother Takisha Douglas had dropped her son off at Harris 's home while she went to work on Friday . She says she called Harris while at work and the babysitter said she was taking the boy to a New Orleans grocery store . Douglas says she called again after getting off work and Harris 's phone went to voicemail , reports the New Orleans Times-Picayune . Authorities had since issued an endangered-missing child advisory for the boy . Why 'd she do it ? Harris was found walking along an eastern New Orleans street around 7:30am Sunday morning with the infant . It remained unclear Sunday afternoon what her alleged intentions were . Douglas had reportedly known Harris for years but that this was the first time she 'd looked after her child . St. Bernard Sheriff Jimmy Pohlmann told the Times-Picayune that local authorities worked with the FBI leading up to the arrest . Pohlmann said Harris was found walking along an eastern New Orleans street around 7:30am Sunday morning with the infant . 'This was a great outcome , the best it could have been , ' Pohlmann said in a statement . 'The longer something like this goes on , the less likely the chance is for a good outcome . ' Shocking : Tristan 's mother Takisha Douglas had reportedly known Harris ( pictured ) for years but that this was the first time she 'd looked after her child .
Louisiana State Police arrested Tristan Douglas on Sunday after she allegedly ran off with infant Sarah Harris .