Court documents say Derrick Mitchell Decoste met and exchanged messages with 70-year-old John Capparelli for several weeks after answering an internet ad for male wrestlers.
Police say Decoste owned the gun used to shoot Capparelli dead in his Henderson home.
A police report suggests robbery was the motive for the killing.
It says Dacoste’s girlfriend turned over to police a bag containing items belonging to Capparelli, including a distinctive Newark Teachers Union wristwatch.
Capparelli was named in February among 180 priests listed by five New Jersey dioceses as alleged sex abusers.