Clues sought in walker's death.

Byline: The Register-Guard

SPRINGFIELD - A middle-aged woman collapsed on a sidewalk in north Springfield on Sunday morning and later died, and police are asking for the public's help in locating a good Samaritan who came to the woman's aid.

The cause of death has not been determined, but an initial investigation does not suggest foul play, said Springfield police Sgt. Mike McCarthy.

The woman, whose name was not released pending notification of family, had a small bump on the back of her head and a cut, injuries that could have resulted from a fall, McCarthy said.

Fire and ambulance crews responded to a call shortly before 7:30 a.m. of a woman found on the sidewalk near the roundabout on International Way, just west of the empty Sony Disc manufacturing plant. Upon arrival, crews found the woman not breathing. She was taken to McKenzie-Willamette Medical Center, where she was pronounced dead, investigators said.

Police later determined that the woman was a regular walker in the area and commonly strolled the loop around Sony and Symantec.

Detectives are asking to hear from anyone who may have been in the area between 4 a.m. and 7:20 a.m. They especially would like to contact a good Samaritan who initially observed the woman, contacted a security officer at Sony and performed cardiopulmonary resuscitation until medics arrived at the scene.

The Samaritan commonly walks in the area with a large white dog, McCarthy said.

Anyone with information is asked to call Springfield police at 726-3714 or Detective David Lewis at 726-3721 during business hours.