BUTLER TWP — Police are seeking a court-deemed “sexually violent predator” after he moved out of his township home without notifying authorities.

District Judge Kevin O’Donnell on Thursday issued an arrest warrant for 45-year-old Troy A. Pett on a felony charge of failing to comply with registration of sexual offenders requirements,

State police on Monday learned that Pett had moved out of his home on Ravenhurst Lane and had not been seen in several weeks.

Butler Township police were notified and began looking for Pett.

The landlord at Pett’s former apartment told police that he had evicted him in September, according to court documents.

As a sexually violent predator under the state’s version of Megan’s Law, Pett must register his address and employment for the rest of his life.

He is required to immediately notify state police whenever he moves or changes jobs.

Butler County Judge William Shaffer in 2007 ruled Pett a sexually violent predator in connection with Pett’s guilty plea to sending child pornography to someone he believed to be a 14-year-old boy.

In reality, the “boy” was an undercover police officer in New Hampshire, according to court records.

After Pett in 2005 sent the “boy” multiple pornographic pictures depicting boys, police searched his home and computer and found more images.

His arrest in that case came less than a year after he finished a prison term for luring a 13-year-old-boy he had met on the Internet in 2001 to hotels for sex, documents said.