In a court filing Monday, federal prosecutors cast Narcy Novack and her brother as remorseless killers who should spend their lives behind bars for plotting the 2009 slaying of her millionaire husband in a Westchester County hotel, months after ordering the killing of his elderly mother.

Novack, 55, and her brother Cristobal Veliz, 59, were found guilty in June of murder and related charges for the killing of Ben Novack Jr. -- the son of the founder of the famed Fontainebleau Hotel in Miami Beach -- and his mother, Bernice, 84.

Ben Novack Jr. was bound with duct tape and beaten to death with dumbbells by hit men sent by his wife and brother-in-law during a July 12, 2009, attack at the Rye Brook Hilton. His mother was beaten to death with a plumber's wrench on April 4, 2009, during an attack by a Veliz accomplice.

Narcy Novack and Veliz originally were set to be sentenced on Nov. 1, but U.S. District Court Judge Kenneth Karas in White Plains delayed the sentencing until Dec. 17.

During the trial, prosecutors argued that Narcy Novack wanted her estranged husband of 21 years and her mother-in-law dead so she could inherit the family fortune, estimated at $8 million. She feared that her husband was going to leave her for 40-year-old ex-pornographic actress Rebecca Bliss and that a prenuptial agreement would provide her with a mere $65,000.

"They are evil," prosecutors wrote in a presentencing memorandum. "They are dangerous; they are remorseless and they are relentless. They should -- without question -- both be sentenced to life imprisonment."

advertisement | advertise on newsday

The prosecution also asked the judge to fine Novack as much as $250,000 for each of the 12 counts on which she was convicted.

Novack's lawyer, Howard Tanner, said he would not respond to the memo until later this week. A call to Veliz's attorney, Michael Keesee, was not immediately returned.

With The Associated Press