Former Catholic priest Fred Lenczycki has pleaded guilty to two counts of sodomy that took place in Missouri in the early 1990s

The first U.S. priest to be labeled as 'sexually violent' for crimes he committed in Illinois has now admitted to abusing two boys in Missouri.

Fred Lenczycki pleaded guilty Wednesday to two counts of sodomy that took place in the early 1990s.

The crimes occurred between 1991 and 1994, while Lenczycki, now 74, was serving as chaplain at St Louis’s DePaul Health Center.

The Catholic priest was charged in February, and he is scheduled to be sentenced in August.

One of the victims, Ron Kanady, now 38, said Thursday that the guilty plea was vindication.

'I am so relieved that justice finally didn't give up on me,' Kanady told The Associated Press. 'For all those years, people looked the other way, it felt like. And now, finally, something's being done.'

Lenczycki was removed from the ministry in 2002, when he was charged with sexually abusing three boys in the 1980s at a church in Hinsdale, Illinois.

The Illinois victims told authorities 'Father Fred' repeatedly molested them, often using the pretense of swaddling them in 'Baby Jesus' costumes for pageants that never took place.

He pleaded guilty in 2004 and was sentenced to five years in prison.

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The crimes in Missouri occurred in the early 1990s, while Lenczycki was serving as chaplain at St Louis’s DePaul Health Center (pictured)

In 2008, a year before his release, he became the first U.S. priest to be labeled sexually violent when he was committed under Illinois' Sexually Violent Persons Commitment Act.

Lenczycki has been free for the past decade and currently lives in suburban Chicago.

However, church and court files show that Lenczycki admitted abusing up to 30 boys in Illinois, Missouri and California over 25 years.

Victims of clergy sexual abuse have demanded more accountability and transparency from the Catholic church since last year, when a Pennsylvania report detailed seven decades of child sexual abuse by more than 300 predator priests.

The Vatican convened a sexual abuse summit in February to hear the testimony of several victims.