David Desper pleaded guilty to shooting 18-year-old Bianca Roberson in the head in June 2017 in West Goshen Township, Chester County last year after they jockeyed for space on a highway merger.
He was sentenced to 20 to 40 years in prison in December.
Desper's lawyer filed a motion asking for reconsideration of his sentence. Judge Ann Marie Wheatcraft rejected the plea without comment Thursday morning.
An attorney for Roberson's family released a statement saying in part, "Mr. Desper does not deserve any leniency. He barely deserves our prayers."
Dad of road rage shooting victim: All I have left is my memories
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