Jonathan Havlicek, 19, was killed while traveling in the backseat...

Jonathan Havlicek, 19, was killed while traveling in the backseat of the 1988 Mercedes after the driver lost control and struck a tree. (Dec. 19, 2010) Credit: James Carbone

A Mount Sinai teen was killed yesterdayin an early morning one-car accident in Smithtown that injured the driver and two other passengers, Suffolk police said.

Jonathan Havlicek, 19, was in the backseat of a 1988 Mercedes traveling east on Middle Country Road around 3:30 a.m. when the driver, Krystle Rivera, lost control and slammed into a tree, causing the car to overturn, police said.

Rivera, 23, of Selden, and the other two passengers were treated for injuries believed not to be life-threatening at Stony Brook University Medical Center, police said.

Sgt. John Twiname said police did not immediately know if anyone was wearing a seat belt when the car crashed.

Police said alcohol was not a factor in the accident.

Suffolk detectives are asking anyone with information about the incident to call the Fourth Squad at 631-854-8452 or speak anonymously to Crime Stoppers at 1-800-220-TIPS.

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