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Tests Performed On Dog That Fatally Mauled Pacifica Woman

PACIFICA (CBS / AP) -- Authorities are trying to determine what prompted a pit bull to attack and kill a pregnant woman in her Pacifica home.

Pacifica police Capt. Dave Bertini said a necropsy was being performed on the dog that killed Darla Napora on Thursday.

Though the results won't be back for a few weeks, Bertini said officials are trying to determine if the dog may have had rabies or some other sort of condition that may have sparked the attack.

KCBS' Margie Shafer Reports:

Officers were called to the home of the 32-year-old Napora when her husband, Greg Napora, arrived home from work a little after noon Thursday and found her injured and lying on the living room floor.

Emergency crews pronounced her dead at the scene.

Officers shot and killed the dog as it approached emergency crews who were trying to tend to the woman.

(Copyright 2011 by CBS San Francisco. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

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