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Sierra Vista families gathered to hear why their children are coming down with cancer.
The results leave some parents dissatisfied.
After three years, the Centers for Disease Control and Prevention released the findings Thursday of a child cancer cluster investigation.
The testing took place within a 25-to-30-mile area within Sierra Vista.
Experts from the Centers for Disease Control and Prevention say that, between 1995 and 2003, eleven Sierra Vista kids were diagnosed with leukemia.
According to the CDC, one of those children has died.
The CDC started its study in 2003 by taking bio-samples of blood, urine, and cheek swabs.
Then, the CDC narrowed its study to 14 families, five of which had a child with leukemia, and nine families that did not.
As far as the test results released Thursday:
The CDC did not find a cause for the leukemia, nor any sort of environmental exposure that could have caused the illness.
But the study did show a variation in the so-called, SUOX gene which helps the body process an unsafe chemical into a safer one.
The long-awaited results are still sinking in throughout Sierra Vista.
Thursday night, the CDC held a community meeting to explain its results but, after the meeting, residents say they still have more questions than answers.
It was a packed meeting room at the Cochise County Regional Service Center, with plenty of heads shaking in disapproval and plenty of unhappy residents.
"We found no exposures of concern," said CDC Epidemiologist, Beverly Kingsley.
Scientists with the CDC measured 128 possible cancer causing factors such as metals, pesticides and PCB's and say they found no exposure of medical concern.
Many at the meeting just weren't buying the news... case in point... Sierra Vista father, Matthew Warneke.
"What they did was take our kids and compared them to 95% of the rest of the United States. You can't do that; you have to compare our kids to the kids in our own community," he told News 4.
Warneke and his family moved to Sierra Vista when his daughter, Annastacia was just six months old. At five and a half years, she was diagnosed with leukemia.
Warneke coincidentally also lived in the city of Fallon, Nevada, another area scientists discovered to also have a cancer cluster.
He and the other parents say it took the CDC too long to come up with the results, which they also say are inconclusive.
"I wish science worked faster because it's a very slow process, it's especially hard to be a parent waiting for results when your child has cancer and you're waiting for results that are meaningful," says Terry Nordbrock, who's eight-year-old son, Linus was diagnosed with leukemia when he was just two years old.
But the CDC says the testing process took a normal amount of time to produce accurate results.
"The people had to be recruited, we had to get all the samples collected. These things take time, because we wanted to make sure we did everything right," says Kingsley.
As far as the Fallon, Nevada connection, a CDC study there found many similarities to the Sierra Vista study.
Fallon is about 60 miles east of Reno.
Both are military towns, with arid climates, surrounded by abandoned mines.
Digging Deeper now:
Fallon's CDC study also failed to find an environmental cause for its cancer cluster.
But it did find Fallon area residents had higher levels of tungsten and arsenic in their blood and urine.
Since 1997, seventeen children with ties to Fallon have been diagnosed with leukemia.
Three have died.
The CDC released DNA test results, also on Thursday showing eleven Fallon children with leukemia have the same SUOX gene variation that was found in some Sierra Vista kids.
The SUOX variation was also found in ten of the twenty-four control subjects in Fallon who did not develop leukemia.
CDC officials say even if the gene variation adds to the risk for leukemia, other unknown factors must be involved.
The CDC says it's waiting on results of outside research to piece together more of the puzzle.
The University of Arizona has contributed research on the Sierra Vista cancer cluster.
Last fall, the UA's Dr. Mark Witten said that air samples that he took from Fallon and Sierra Vista had an elevated level of potentially hazardous metals, including tungsten, which may cause cancer.
We contacted Dr. Witten for his comments on the CDC's latest results but, we've learned, he's out of the country.