A Cook County judge has ruled that a former Catholic priest is a sexually violent person and should be committed indefinitely.

In his ruling Judge Dennis Porter said proving a person is substantially probable to sexually abuse children again is a complicated issue and no assessment tool can definitively predict if a person will re-offend. The former priest, Daniel McCormack, sat expressionless as the judge ruled that the state proved its case and that he is a danger to children.

McCormack was convicted in 2007 of sexually abusing boys while he was a priest at st. Agatha’s parish on Chicago’s South West Side.

Prosecutors noted that McCormack continued to abuse boys even after he was detected and has never sought treatment.