An 18-year-old was killed, while a second teen was critically injured in an accident that had the eastbound lanes of Interstate 440 closed for more than three hours on Monday. The wreck was reported at 10:50 a.m. between Interstate 65 and Nolensville Pike, south of downtown.Metro police said 18-year-old William Garton was killed in the accident. Authorities said Garton was driving a 1995 BMW sedan westbound on I-440 when for unknown reasons he lost control of the vehicle. The car traveled over the center median into the eastbound lanes of I-440 before being struck in the driver's side by Dodge Ram. Garton was pronounced dead at the scene. His passenger, Carlos Gomez, 18, was transported to Vanderbilt University Medical Center. He was last listed in critical condition. The 23-year-old driver of the Dodge Ram was also transported to Vanderbilt for non-life threatening injuries. Eastbound traffic was affected with roadway closed while crews investigated the accident. Drivers were diverted to alternate routes.The roadway reopened just before 2 p.m.Police said there was no evidence of drug or alcohol involvement at the scene.