NEW YORK (CBSNewYork/AP) — An inmate’s death at a Nassau County jail last year could have been prevented, according to a report issued by a state commission.

The Commission of Correction’s report criticized Nassau jail officials and a private health care contractor in the death of 47-year-old Kevin Brown, Newsday reported.

The report suggested that Brown’s death could have been prevented if he had received proper medical care and supervision.

Brown died in February 2014, WCBS 880’s Sophia Hall reported. The report’s findings indicated he died of heart failure.

Brown’s body, the report said, was in full rigor mortis when he was found in his cell, meaning he had been dead for more than four hours.

According to the report, Armor Correctional Health Services’ deficient care resulted in mismanaged diagnoses. The report also said Armor was negligent because Brown wasn’t seen by a doctor after two seizure episodes.

Another inmate said he heard Brown banging in his cell for two hours before he was found dead, Hall reported.

An attorney for Nassau County said the administration is taking the allegation very seriously.

A spokesperson for Armor told WCBS 880 that due to federal HIPAA regulations, they could not comment on specific patients.

(TM and © Copyright 2015 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2015 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)