David Desper, 28, held for shooting of Bianca Roberson

Image source, West Goshen Township Police

Image caption, David Desper (R) legally owned the 40-calibre handgun he allegedly used to shoot Bianca Roberson (L)

A 28-year-old man has turned himself in to police investigating a suspected road rage attack on a teenager shot dead in Pennsylvania last week.

David Andrew Desper surrendered to authorities on Sunday, accompanied by a lawyer, and was charged with first-degree murder.

Bianca Roberson, 18, sustained a fatal gunshot to the head in the attack.

The suspect is also charged with third-degree murder, possessing an instrument of crime and reckless endangering.

Gunfire rang out last Wednesday during evening rush hour as Mr Desper's red Chevrolet truck attempted to merge on to a lane in Chester County at the same time as Ms Roberson's car, say officials.

Video caption, In California, another road rage incident leads to a crash described as like being like a scene from a Hollywood action movie

Chester County District Attorney Tom Hogan said: "They jockeyed for position and he wasn't happy so he pulled out a gun and shot Bianca in the head, killing her instantly."

Ms Roberson's car careened off the road and landed in a ditch, while the gunman's car escaped "at a high rate of speed", according to court documents.

Investigators do not suspect a racial element to the attack.

"This appears to be a savage, senseless and brutal act from one human being to another human being," said Mr Hogan.

Mr Desper, of Trainer, Pennsylvania, legally owned the 40-calibre handgun used in the attack, said officials.

He is being held at Chester County Prison ahead of a preliminary hearing on 13 July.