A man prosecutors say killed three people in a street racing crash returned to court Monday, signaling potential developments in a court case which has been in limbo while CHP investigators analyze the crash wreckage.

Dealio Lockhart, 38, was charged with three counts of second-degree murder and four counts of reckless driving causing injury after a 2016 collision which killed Santa Clarita residents and College of the Canyons students Brian Lewandowski, 18, and Michelle Littlefield, 19, as well as UPS driver Scott Treadway, 52.

All three died at the scene after a street racing collision caused the UPS truck to go airborne and crash over the center median, shearing the top off of the Nissan in which Littlefield and Lewandowski were passengers.

Related: Alleged Street Racing Case Awaits Specialized CHP Investigation

In addition to the three fatalities, four others were seriously injured: two men in the Nissan and a man and a woman in separate cars.

The complicated nature of the crash, which called for a detailed investigation by the California Highway Patrol’s MAIT team (the Multidisciplinary Accident Investigation Team, which specializes in crash investigation), has resulted in delays.

If convicted, Lockhart could face up to life in prison.

Lockhart is scheduled to return to court  Oct. 1 for a continuation of his preliminary hearing.

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