The bite wounds that punctured 5-year-old Melissa Hunt's body and disfigured her face were inflicted by one or more of the four pit bullterriers she had been playing with behind her home, according to a preliminary autopsy report released Thursday.

Melissa, found Wednesday evening floating in a shallow, swampy cove in the Tsala Apopka lake chain, died from a combination of severe bites and drowning, the report said. Medical examiners dismissed the possibility that alligators had attacked the girl.

"She was the last of my grandchildren, the only one I'll ever have," Pansy Berlin, Melissa's grandmother, said as she sobbed at the door of her Inverness home.