Sex offender has changed addressThe Jamestown Police Department is warning residents that a convicted sex offender living in James-town has changed his addresses. William Humphrey Kysar, 49, is living at 409 Fourth St. N.E. #2, Jamestown. He is described as a white man, 6 feet, 1 inch tall, 260 pounds with brown hair and brown eyes. Police said he drives a brown 1989 Chevrolet Silverado pickup, N.D. license plate JHE680.