Report: Face-chewer had no flesh in stomach

Miami-Dade Police Dept. / AP

This undated booking mug made available by the Miami-Dade Police Dept., shows Rudy Eugene, 31, who was shot and killed by Miami-Dade Police after he refused to stop eating another man's face in Miami, Saturday, May 26, 2012. The victim remains hospitalized in critical condition.

By NBCMiami.com

The man who mauled off a homeless man's face over Memorial Day weekend apparently had no human flesh in his stomach, a report shows.

Law-enforcement sources told the Miami Herald an autopsy revealed 31-year-old Rudy Eugene had undigested pills in his stomach but no human flesh. The pills have not yet been identified.

---

Eugene was fatally shot by an officer after he refused to stop chewing on Ronald Poppo's face along the MacArthur Causeway.

Read the original story on NBCMiami.com

Though officials have speculated bath salts may have sparked Eugene's wild behavior, it remains unknown what prompted the attack.

Girlfriend of face-eating attacker blames drugs or voodoo

Officials told the Herald a preliminary review found marijuana in Eugene's system. Those who knew Eugene said he was known to smoke marijuana but the drug is not known to cause violent spurts.

A source also told the newspaper Eugene did not have his two front teeth but that chunks of flesh were found between his teeth. The source also said pieces of flesh were found on the floor of the scene.

What caused naked face-chewing attack: Bath salts, LSD?

Officials said the autopsy report would not be released to the public until the investigation into the shooting concludes - a process that could take more than a year.

Poppo, meanwhile, continues in critical condition in the hospital.

More content from msnbc.com and NBC News:

Follow US News on msnbc.com on Twitter and Facebook

?

joe paterno san francisco 49ers san francisco 49ers giants vs 49ers sf 49ers joe paterno died 49ers game