Dean Kelly, a former model and actor serving a 10-year sentence for sex crimes, pleaded not guilty Monday to charges that he tried to have New Orleans District Attorney Leon Cannizzaro and three other people killed.

Kelly, clad in an orange jumpsuit, stood as his attorney Vincent Wynne stated his plea. He did not speak during the arraignment at the Washington Parish Courthouse in Franklinton.

Kelly is accused of offering an inmate at Rayburn Correctional Center in Angie — where they were both in prison — a boat, a motorcycle, cars and money to kill Cannizzaro; City Councilman Jason Williams, who was at one time Kelly’s attorney; Criminal District Court Judge Tracey Flemings-Davillier, who oversaw his case; and a victim of the sex crime to which Kelly pleaded no contest.

Wynne refused to comment after the hearing.

Kelly was charged in March by 22nd Judicial District Attorney Warren Montgomery with four counts of solicitation of murder. He is accused of offering $35,000 in cash, two luxury cars, a boat and a BMW motorcycle in exchange for the hits.

In March, a source told The Advocate that the allegations were based in part on Kelly’s writings and a statement from another inmate.

Kelly’s mother, Marilyn, said at the time that her son had been set up and the writings that formed the basis of the charge were notes for a screen play that Kelly and the inmate were writing. The screenplay was a murder-for-hire story, she said.

Kelly, who had a cameo in the 1992 Aerosmith video for the hit song “Crazy,” is serving a 10-year prison sentence after his 2013 no contest plea to two sexual battery counts and a single count of carnal knowledge of a juvenile. He was originally accused of raping a 14-year-old girl in February 2005 and a 17-year-old that same year.

Kelly’s plea was known as an “Alford plea,” or one in which he does not admit guilt but concedes the state has enough to convict. He was originally given a suspended 10-year sentence, but then Flemings-Davillier ruled in 2014 that he had violated the terms of his probation by failing to registering his phones with the court and continuing to use aliases on social media.

Follow Faimon A. Roberts III on Twitter @faimon.