Mathew Valentin, 15, was last seen leaving his residence at 11:55 p.m. on Tuesday, Aug. 4, according to the Nassau County Missing Persons Squad. His disappearance was reported to police at 2:50 p.m. Friday.
Valentin is described as 5-foot-2 and approximately 130 pounds, with brown hair and brown eyes. He was last seen wearing black pants, a black sweatshirt, and gray slides, detectives said.
Police believe Valentin may be in the Lynbrook area.
Anyone with information about his whereabouts is asked to call the Nassau County Missing Persons Squad at 516-573-7347 or 911. All callers may remain anonymous.
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