It happened on Sandra Drive in Hauppauge just before 10 p.m.
Authorities say 16-year-old passenger Michael Cisternas was seriously hurt in the crash and was rushed to St. Catherine of Siena Medical Center in Smithtown, where he was pronounced dead at 12:45 a.m. Tuesday.
Buckley and his 16-year-old sister Lynn, who was also a passenger in the car, were transported to Stony Brook University Medical Center for treatment of their injuries. They were both treated and released.