HAUPPAUGE - Officials say the Babylon man accused of driving drunk and killing a Lindenhurst teen on Sunday night was driving recklessly for miles before the fatal crash. At a press conference today, Suffolk County District Attorney Thomas Spota said Michael Grasing, 31, had a blood-alcohol content of .30 percent, nearly four times the legal limit. Spota says Grasing was driving at 100 mph, blowing red lights and swerving in and out of lanes on Montauk Highway before he slammed into 18-year-old Brittney Walsh's SUV. Walsh's car flipped over several times from the impact before crashing into a utility pole. She died at the scene. Walsh, an honors student and star athlete, had just graduated high school the week before. One eyewitness told the district attorney that they heard another motorist yell to Grasing at a red light that he should "stop driving or he's going to kill someone." After the crash, officials say Grasing continued to drive up onto a sidewalk along Montauk Highway, forcing pedestrians to run to get out of his way. Investigators are now asking for the public's help in piecing together Grasing's whereabouts on Sunday evening, before the crash. Anyone with information is urged to call Crime Stoppers at 1-800-224-TIPS. A judge set Grasing's bail at $100,000 cash or $200,000 bond at his arraignment this evening. His lawyer questioned the high amount, noting his client has only been charged with DWI, but Spota has said Grasing could face upgraded charges. He's due back in court on July 3.Family members and friends are gathering for Walsh's wake today.

Police: Teen killed in crash with drunken driver in Lindenhurst