Bethenny Frankel Boyfriend's Cause Of Death Undetermined — No Autopsy Performed

Bethenny Frankel's late boyfriend's cause of death has been ruled undetermined — and will likely remain a mystery, RadarOnline.com has learned.

The New York Medical Examiner told RadarOnline.com in a statement that an autopsy was was not conducted on Dennis Shields' body "due to religious objection."

“An OCME autopsy was not performed in this case due to a religious objection, upheld by law in such instances where no criminality is suspected,” Chief Medical Examiner Barbara Sampson said.

As RadarOnline.com previously reported, Shields was found dead of a suspected overdose on August 10. He was 51.

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The New York Post reported he overdosed on prescription pills, and an assistant attempted to revive him with Narcan, which is used to revive patients under the influence of opiates.

The medical examiner's office immediately began investigating the death. But it appears any investigation has been called off.