The Mansfield Division of Police is asking for the public’s help in locating Robert M. Thompson Sr. Thompson is a white male, 46 years-old who was reported missing on December 5th. The last contact with Thompson was on November 19th. Thompson has no known address and is believed to be transient. he also has suffered from mental illness in the past. If you have any information on Mr. Thompson please contact the Mansfield Police Department.