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Youth First Social Worker Arrested for Child Seduction
Indiana State Police initiated a criminal investigation on November 6 after detectives received information regarding inappropriate behavior between a Youth First social worker and a 16-year-old male student at Princeton High School.
During the criminal investigation, the social worker was identified as Mariah Lienemann, 30, of Owensville. Suspicious behavior was reported to school administrators on November 6, and police were immediately contacted. The student had been in Lienemann’s class since the start of the 2025-2026 school year.
Indiana State Police detectives were able to determine during the investigation that Lienemann allegedly had sexual relations with the student on more than one occurrence in the classroom during school hours. Detectives also discovered numerous inappropriate text messages, and more than 15 Facetime calls between Lienemann and the student.
The Gibson County Prosecutor’s Office reviewed this case and charged Lienemann with Child Seduction, a Level 5 Felony. An arrest warrant was issued on December 11. At approximately 5:40 p.m. this evening, Indiana State Police arrested Lienemann at her residence without incident. She was transported to the Gibson County Jail where she is currently being held on bond.
Lienemann is no longer employed with Youth First.
Investigating Officers: Detective Nick Hatfield and Sergeant Brad Chandler, Indiana State Police
During the criminal investigation, the social worker was identified as Mariah Lienemann, 30, of Owensville. Suspicious behavior was reported to school administrators on November 6, and police were immediately contacted. The student had been in Lienemann’s class since the start of the 2025-2026 school year.
Indiana State Police detectives were able to determine during the investigation that Lienemann allegedly had sexual relations with the student on more than one occurrence in the classroom during school hours. Detectives also discovered numerous inappropriate text messages, and more than 15 Facetime calls between Lienemann and the student.
The Gibson County Prosecutor’s Office reviewed this case and charged Lienemann with Child Seduction, a Level 5 Felony. An arrest warrant was issued on December 11. At approximately 5:40 p.m. this evening, Indiana State Police arrested Lienemann at her residence without incident. She was transported to the Gibson County Jail where she is currently being held on bond.
Lienemann is no longer employed with Youth First.
Investigating Officers: Detective Nick Hatfield and Sergeant Brad Chandler, Indiana State Police