"As you know, the backpack was brought to our lab for testing and we got the results back yesterday," she said. "There was a very small amount of blood on the pack, and the results showed that it was human blood."
Macintyre said there was no indication of any lion or bear blood present on the pack and the test found no saliva or even a single hair was present on the backpack, and it was clean of any dirt with only one tear (less than approximately 1/2").
Macintyre told the Post when a typical mountain lion attacks a human, the front paws grab the shoulders, the back paws dig into the lower back and they bite down on the head. Had Biggs been attacked by a lion, the backpack would have more damaged to it. There also would have been hair and saliva on the pack, Biggs provided DFG.
"All of the evidence -- the lab results, a study of the scratches on Mr. Biggs' arm and a thorough investigation at the scene -- is inconsistent with a mountain lion attack.