A day-long search for a missing Darien teen ended at about 11:15 Monday night, when police say a family member found 16-year-old Zachary Gallo on Hope Street in Stamford.
Darien, Stamford and Norwalk police had been searching since early Monday morning for Gallo, who has autism and left his Hoyt Street home late Sunday night.
Marron said police do not suspect foul play, but the incident remains under investigation by the Darien Police Youth Division.
Lt. Ronald Bussell, who leads the town's detective bureau, said Monday that the department and others searched the town's 13 square miles without finding Gallo earlier in the day.
Gallo, of 103 Hoyt St., was reported missing at 7 a.m. Monday after he was last seen between 11 and 11:30 p.m. Sunday.
A police source said the boy left a note for his parents saying he wanted to harm himself. In the note, the boy said he was heading for the cove.
On Monday, Norwalk police sent a team of officers and a police dog, who unsuccessfully tried to run a track on the boy near St. John's Cemetery, near the boy's home.
Stamford police Capt. William Mullin said Stamford Marine Police had also undertaken a search for the boy.
Police said Gallo left his cellphone at his home and was unable to be contacted on Monday.