Charles Dowd, age 69, was reported missing from an Amtrak train traveling from Emeryville, CA to Chicago, IL. When the train arrived in Chicago, his luggage, cell phone, and medication were found in his sleeper car, but he was not on board. Police are investigating reports that he spoke confusedly with conductors in Nebraska. His family is concerned for his health and safety since he requires medical care and medication. Anyone with information on his whereabouts is urged to contact the authorities.