Missing 18-year-old found dead in river after massive search in 2 states

18-year-old Dalton G. Malmstrom was reported missing on Saturday, May 9. (Source: WBNG)
Published: May 12, 2026 at 2:12 PM EDT|Updated: 4 hours ago

NICHOLS, N.Y. (WBNG/Gray News) - A missing 18-year-old was found dead in New York, authorities said.

New York State Police announced that Dalton G. Malmstrom was found dead in the Susquehanna River.

Dalton is described as a 5-foot-10 male with dark hair and was last seen wearing a dark-colored shirt. The attached photo is a current image of Dalton.(New York State Police)

Malmstrom was last seen leaving his home around 7:45 a.m. on May 9.

Family members told police he was “not acting like himself” before he left, the New York State Police said in a press release. Troopers said that Malmstrom left his home Saturday morning after an argument with family.

Malmstrom’s disappearance prompted a large-scale search by emergency responders and volunteers from New York and Pennsylvania.

No details about his death have been provided.

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