Insects at Crime Scene Could Help Establish House of Horrors Timeline

An entomologist hired to study maggots found on the bodies discovered in the home of Cleveland's alleged serial killer said today it would take him weeks to determine when the victims died.

Joe Keiper of the Cleveland Museum of Natural History told ABCNews.com that he was asked by the Cuyahoga County Coroner's Office to inspect the blow fly larvae feeding on the corpses found at Anthony's Sowell's home in hopes of establishing a time frame for the deaths.

"Depending on the type and number of insects on a body, I might be able to get an estimate on the postmortem interval, or the time passed between death and body discovery," said Keiper, adding that he is one of only 20 U.S. forensic entomologists.

Keiper looks primarily for the larvae of blow flies, a species of insects that he said is one of the most important drivers of decomposition. Their growth rates are also predictable, Keiper said, making it easy to figure out when they landed on a decomposing body.

"The odor of decay occurs immediately," Keiper said. "Blow flies pick up the gases omitted by bodies during decomposition at such a high speed that these insects are truly the first responders on a crime scene."

Keiper said he first went to the coroner's office to examine and collect entomological evidence from the first bodies that were found in convicted rapist Sowell's home but later returned to do a "body-by-body investigation."

Calling Sowell's home "infested," Keiper declined to go into more detail.

Typically spending a month on each case, Keiper predicted that because of the sheer number of bodies in the Sowell case, his entomological evidence could take months to process.

Still, Keiper said, this could be the first time that insect research is the only evidence to support a timeline of a crime.

"I've worked 32 cases, but there were only a couple of them where entomological evidence played a big role," he said. "Usually, my research is just stacked up with eyewitness accounts.

"My work on this case might be the only chance to get an accurate timeline."

As funerals begin for several of the victims of the alleged serial killer, investigators work to identify the remaining bodies and searc for more in nearby homes.

All but one of the 11 female victims found dead in and around Sowell's three-story Cleveland house have been identified.

Cleveland authorities released the identity of the 10th victim Wednesday night, which was complicated because only her skull was found -- in a bucket in Sowell's basement.

Leshanda Long, 25, had been missing since August 2008, authorities said, but had never been reported as a missing person.

Sowell, 50, was charged with five counts of aggravated murder after authorities looking to question him for a reported rape last month came upon an even more gruesome finding: a horrible stench of rotting bodies that eventually led them to corpse after corpse in the home.

Sowell, who was ordered by a Cleveland judge to be held without bond last week, was on suicide watch and was described by a prosecutor as an "incredibly dangerous threat to the public."

Suspect Could Face Death Penalty

If convicted, Sowell could face the death penalty.

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