Report: Unclear What Prompted Yellowstone Mauling

An investigation into the second of two deadly grizzly bear maulings last summer at Yellowstone National Park is unable to conclude if the same bear was responsible for both deaths.

But DNA evidence shows the sow that killed California hiker Brian Matayoshi in July and one of its cubs also fed on Michigan hiker John Wallace in August.

The report by the Interagency Grizzly Bear Committee released Monday says evidence of two other bears were found 65 feet away and 492 feet away from Wallace’s body.

The sow linked to both deaths was euthanized last fall.

The report says Wallace stopped hiking and may have been eating a snack when he was attacked the morning of Aug. 25.

It is not clear why the bear or bears attacked him.