FORT LAUDERDALE, Fla. » A Palm Beach County zookeeper screamed into her handheld radio just before a tiger mauled her to death, according to a newly released autopsy report.

The document gives new details on the death of Stacey Konwiser, who was killed April 15 by an endangered Malayan tiger at the Palm Beach Zoo.

An autopsy showed Konwiser, 37, died from bites to the neck that fractured her spine and cut several arteries and her right jugular vein. She also suffered nonlethal claw injuries to her chest, shoulder and arm, according to the report.

Jeff Miller, Konwiser’s uncle, said he still hasn’t gained closure on the events that led to his niece’s death. He’s waiting for the results of other pending investigations.

“I still have a lot of questions,” he said. “I may never get the answers to the questions, but I’ll wait until we have the final reports.”

The tiger house has four cages, all of which were locked except for one, according to the report. Investigators found all the doors to that cage open, and two padlocks hanging outside the keeper door.

The cage had a placard indicating that animals had access to the area, according to the report. A box large enough to block Konwiser’s view of the tiger was inside the cage, an investigator wrote.

Zoo officials have attributed the attack to “human error” by Konwiser. Zoo president Andrew Aiken said employees “are never allowed to enter a tiger enclosure to which the animal has access.” Miller said he questions Aiken’s accounting of the attack and wants further investigation.

The Florida Fish and Wildlife Commission is investigating the attack and does not have a time frame for when its report will be released, said Carol Lyn Parrish, an agency spokeswoman.

When a nearby maintenance worker heard Konwiser’s screams, he ran to her aid and saw a tiger standing over her and a large puddle of blood, according to the medical examiner’s report. Zoo staff tried unsuccessfully to lure the tiger away from Konwiser, and the lead veterinarian fired a tranquilizer dart that subdued the tiger, the report states.

The attack was called into 911 at 1:56 p.m., and Konwiser was pronounced dead an hour later at St. Mary’s Medical Center in West Palm Beach.

The report identifies the tiger that killed Konwiser as Hati, a 12-year-old, 350-pound male tiger. Only about 300 Malayan tigers remain in the wild.

A toxicology report showed no presence of alcohol or illegal drugs in Konwiser’s system. It detected Topiramate, a drug prescribed to treat and prevent seizures or migraine headaches. Konwiser didn’t have epilepsy, but she took medication to prevent migraines, her uncle said.

The autopsy report noted Konwiser’s tattoos, which included tiger paw prints on her foot and lower back.

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(Sun Sentinel staff writer Emily Miller contributed to this report.)

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©2016 Sun Sentinel (Fort Lauderdale, Fla.)