Janesville police are asking the public’s assistance in locating a missing person. Police say 67-year-old Helen B. Ruston of Holiday Drive has been missing for a week. Ruston is five-three, 250 pounds, graying thin brown hair, and brown eyes. She was last ween wearing a dark winter coat and had her walker. She is also known to use public transit, specifically bus service. Police ask if anyone sees Helen to call the Rock County Communications non-emergency number (608)757-2244