Suspect : Mark Speer , 44 , from Indiana , faces three child molestation charges and federal child pornography counts . The live-in girlfriend of an accused child molester from Indiana allegedly had helped the suspect arrange sexual encounters with young girls , according to recently unsealed court documents . Mark Speer , 44 , a plumber from Lafayette , was arrested in August on suspicion of molesting a 3-year-old girl and creating child pornography videos . In the course of the investigation into the claims , police received permission to access Speer 's private messages on Facebook and the dating site Zoosk exchanged between him and his girlfriend , Rebecca Kaster . Search warrants released last month state that Kaster had assisted her boyfriend in scheduling his illicit encounters with children . One Facebook message sent from Kaster 's account to Speer December 22 , 2013 , read : ' i think i have the best chance getting her or the younger [ girl ] ... so far that ’ s all i got . ' Speer reportedly replied that Kaster 's update turned him on . Kaster , who has not been charged with any crime , told detectives that she and Speer had an open relationship , in which he was allowed to have sex with other women he met online , according to the court documents cited by Indianapolis Star . Speer was charged last September with child molesting , attempted child molesting and criminal confinement , along with federal child pornography charges , . The charges against the 44-year-old stemmed from the discovery of a half-dozen videos on his cell phone featuring a 3-year-old girl in his house wearing nothing but a pair of socks . Go-between : Speer 's live-in-girlfriend , Rebecca Kaster , is suspected of helping the Indiana plumber ( left and right ) arrange encounters with young victims via Facebook and Twitter . When questioned by Indiana State Police in August about the videos , Speer claimed he recorded them because the toddler was 'acting goofy ' and 'dancing around . ' Court papers released last fall revealed that in one of the clips , Speer is heard saying about the child : 'This pretty little thing 's mind , ' and , 'Oh my God , I ’ ve already got her naked . ' The suspect told police the girl 's mother took off her clothes after the 3-year-old had spilled ice cream of herself . Kaster , Speer 's girlfriend , told detectives that she had been babysitting the little girl when she left her boyfriend alone with her for up to 30 minutes .
Mark Speer , 44 , from Indiana , faces One child molestation charges and federal child pornography charges . Speer 's live-in-girlfriend , Rebecca Kaster , is suspected of helping him arrange encounters with victims online . Kaster , who has not been charged , said she and Speer were in an open relationship . Speer was arrested in August after six videos featuring children were found on his phone . three clip showed a 3-year-old girl eating ice cream in the nude in his house .