Martin Thomas Blackwell, 39, was last seen on April 22, 2021, in Concord, California. He was described as 5 feet 10 inches tall, about 185 pounds, with brown hair and brown eyes.

There is limited public information about the circumstances of his disappearance; no specific details about his last known actions or confirmed sightings have been released and the case remains unsolved. The Concord Police Department is handling the investigation and has asked anyone with information to come forward.

If anyone in Concord remembers Martin or has information about his movements around April 22, 2021, please contact the Concord Police Department.