It happened just after 9 a.m. on Sunday, Oct. 20 in Mount Sinai, Suffolk County Police said.
Ralph Maiello, 55, of Coram, was driving a 2019 Chevrolet pickup truck southbound on County Road 83 when his vehicle left the roadway and struck a tree just south of Mount Sinai-Coram Road, according to police.
Maiello was transported to John T. Mather Memorial Hospital in Port Jefferson where he was pronounced dead.
The pickup truck was impounded for a safety check.
Detectives are asking anyone with information on this crash to call the Sixth Squad at 631-854-8652.
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