NEW YORK (AP) — The mastermind behind a multimillion-dollar scheme to loot hundreds of corpses and sell their body parts apologized Thursday to families of the victims and thousands of tissue recipients.

Michael Mastromarino, a former oral surgeon who owned Biomedical Tissue Services, told victims of the scheme he was sorry for the pain and grief he caused. The New Jersey company shipped bones, skin and tendons to tissue processors.

Mastromarino was in court for a sentencing hearing, but the sentencing was postponed because the probation report wasn't finished. He is to be sentenced later this month.

Victims of the scheme called Mastromarino "greedy" and "heartless" and asked that he be sentenced to the maximum 54 years.