An off-duty Nassau County detective was killed in a violent crash on Long Island overnight, authorities said.
Detective Alfred A. Samaniego was at the wheel of a 2011 GMC Acadia Denali exiting the Northern State Parkway in Carle Place when he crossed the northbound lanes of Glen Cove Road and collided with a U.S. Postal Service tractor trailer heading south, police said.
Samaniego died in the crash, according to an ambulance medic.
No one else was hurt, police said.
The accident happened at about 12:53 a.m. Wednesday.