(KMOV) -- Frederick Buettner has been convicted of crimes against children in both Missouri and Illinois.
He was released from prison in May, but authorities say he’s gone off the grid.
“He’s a dangerous individual and no one is safe as long as he is out there,” said Heather Claxton.
It’s not easy anymore for Claxton and her daughter to leave their house because they are so afraid of Buettner.
In 2004, he pleaded guilty to raping his daughter when she was between the ages of 3 and 5.
He was sentenced to 10 years in prison, but was released in May.
Last week, Claxton got the call that Buettner had disappeared from a halfway house in East St. Louis. No one has heard from him since.
“It’s the worst nightmare I can imagine living through, knowing he’s out there and stalking us or someone else, it’s terrifying,” Claxton said.
East St. Louis Police said they were unaware he was gone but promised to look into it.
State officials confirmed he was on the run and told News 4 they’re actively on the hunt and tracking down people he might know and places he might be.
Meanwhile, Claxton says her daughter can’t sleep and is afraid her dad will retaliate because she told authorities. They have installed security on their home and have been granted an Order of Protection.
“I want him back in prison, where he belongs,” Claxton said.
Now, she wants your help.
“Protect your children and look out for this man,” she said.
Buettner’s described as 5-foot-11 and 155 pounds, with blonde or strawberry-blonde hair and a tattoo of a tiger head on his back.
Anyone with information about Buettner’s location is asked to call police.