State Police Saturday were still investigating the cause of a two-car crash that killed both drivers on the Southern State Parkway in West Islip on Friday.
Jacques Louis, 39, of Brentwood, was driving a red 2007 Ford Mustang, which collided with a gray 2013 Subaru driven by Sean Anderson, 25, of Smithtown.
Louis was declared dead at the scene while Anderson was airlifted to Stony Brook University Hospital, where he was later pronounced dead.
Authorities said the cars were heading west when the crash occurred east of Exit 39 near Udall Road, shortly before 4 p.m.
The cars collided, then crashed into a wooded area off the shoulder of the parkway, State Police Senior Investigator Thomas Hughes said Saturday.
"The cause of the accident is still undetermined," Hughes said. "But we are looking for eyewitnesses to the crash."
Louis was a boxer, said his sister Jen, who declined to provide her last name yesterday.
"He was a fun-loving guy," she said. "I will remember his laugh. He was a real jokester."
Louis was known for buying ice cream for neighborhood children and loved to let his hair flow in the air when he lowered the top of his Mustang convertible, his sister said.
Nicknamed the "Haitian Warrior," Louis was a righthanded heavyweight boxer known for his slick defensive style, said Tommy Rainone, a professional welterweight boxer who had trained with him at the Westbury Boxing Club since 2006.
"He was a great guy," Rainone said. "He was very humble and always had a smile on his face."
Louis had a 3-1 professional record and had fought at the Paramount in Huntington, the Plattduetsche Park Restaurant in Franklin Square and at Russo's on the Bay in Howard Beach.
Also an amateur boxer, he had competed in Golden Gloves competitions.
Anderson's family was not immediately available for comment.
State Police ask anyone with information about the crash to contact investigators at 631-756-3300.
With Robert Cassidy
and Candice Ferrette