The attorney for a woman whose pit bulls killed a woman last weekend says they're not the same dogs that attacked another woman.
Forty-year-old Jennifer Brooke died Sunday when three pit bulls mauled her inside her horse barn.
Attorney Michael Andre tells Denver's KCNC TV it's a mystery why the household pets turned into killers.
He says the animals that killed Brooke hadn't been violent before, and were not involved in a previous attack as widely reported.
Andre says two of Jacqueline McCuen's dogs did attack a woman last April, but that those animals died over the summer.
Andre insists the animals were not trained as pit bull fighters, and were not mistreated, malnourished or allowed to roam.
A memorial for Brooke is scheduled for Saturday.
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Sources: drklein.net contributed to this report