3rd-degree murder plea in Chester County teen's road rage killing

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Wednesday, September 5, 2018
3rd-degree murder plea in teen's road rage killing
3rd-degree murder plea in teen's road rage killing. John Rawlins reports during Action News at 5pm on September 5, 2018.

WEST CHESTER, Pa. (WPVI) -- A man has pleaded guilty to third-degree murder in the shooting death of a recent high school graduate during what police say was a road rage confrontation last year in Chester County.

Twenty-nine-year-old David Desper entered the plea Wednesday in the death of 18-year-old Bianca Roberson.

Police say the two jockeyed for space in the merger of a highway lane in West Goshen Township in June 2017 before Desper shot Roberson in the head, and her car veered off into a ditch and hit a tree.

Desper turned himself in four days later.

The plea came a week before criminal proceedings were scheduled to begin.

Funeral held for teen killed in road rage shooting. John Rawlins reports during Action News at 4pm on July 7, 2017.

It was a heart-wrenching day for Roberson's family.

"I hurt and I miss my baby," said her mother, Michelle.

Desper had originally faced both first- and third-degree murder charges.

The assistant district attorney agreed to the lesser third-degree plea, concerned that proving the specific intent to kill required for a first-degree conviction could be a problem.

Suspect arrested, ID'd in Chester Co. road rage killing. Bob Brooks reports during Action News at 6 p.m. on July 2, 2017.

"First-degree murder carries a specific set of elements. One of them is pre-meditation and one of them is specific intent to kill," said Assistant District Attorney Christopher Miller.

While there had been social media posts saying the family was not happy with the plea, Bianca's father said that's not the case.

"We didn't understand it at first, but once it was explained to us we understood it fully," said Rodney Roberson.

Desper faces between 90 months and 40 years in prison. Sentencing is expected in either December or January.

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