John Joseph Simons was 35 when he disappeared from his home on Horton Boulevard in Stony Brook, New York, on March 15, 1991. He was last seen at home and no one has heard from him since. Authorities classified him as endangered missing because he suffered from depression and required medication.

At the time he went missing Simons was described as a 6 feet tall Caucasian male, about 150 pounds, with brown hair, brown eyes and wire-framed glasses. Few details about the circumstances of his disappearance have been released and there have been no significant leads; the Suffolk County Police Department has kept the case open and his family continues to hope for answers.

If anyone knew John, lived on Horton Boulevard then, or has information about his movements in March 1991, please come forward.