Suffolk police have charged a Huntington Station man with driving while intoxicated after a head-on crash Tuesday night that killed his backseat passenger. 

Police say Leo Flores Gracias, 26, was driving a 2017 Honda Accord north on Sweet Hollow Road south of Chichester Road when the vehicle crossed into the southbound lane and struck a 2010 Toyota Prius head on at about 8:05 p.m.

A passenger in the backseat of the Honda, Marlon Nunez, 23, of Huntington Station, was transported to Plainview Hospital, where he was pronounced dead.

Flores Gracias was airlifted via Suffolk police helicopter to Stony Brook University Hospital for treatment of serious injuries. Two other passengers in the Honda were transported to area hospitals for treatment of non-life-threatening injuries. The driver of the Toyota was transported to Huntington Hospital for treatment of non-life-threatening injuries.

Flores Gracias was charged with driving while intoxicated and will be arraigned at a later date.

Detectives ask anyone with information on the crash to call the Major Case Unit at 631-852-6555.

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