William Thomas Alley was 77 when he was last seen on July 22, 2018, in Chula Vista, California. He was known to make frequent trips to Tijuana, Mexico, and it is believed he may have been in that area when he disappeared. He is 5 feet 6 inches tall, about 130 pounds, with gray hair and blue eyes.

The Chula Vista Police Department has been investigating and family members have continued to seek information, but no significant leads have surfaced. If anyone remembers seeing William in the Chula Vista or Tijuana area around July 22, 2018, please contact the Chula Vista Police Department with what you know.