Road rage murder? Joseph Walker, New Jersey police officer, charged in Md.

Road rage murder? Maryland State Police responded Saturday evening to a shooting on the shoulder of the ramp from northbound Route 3 to Interstate 97 near Millersville.

In this June 8 photo provided by the Maryland State Police, Hudson County (N.J.) police Detective Joseph Lamont Walker is shown in a booking image. Maryland authorities say they’ve charged Hudson after an alleged road rage incident in which one person was fatally shot.

Maryland State Police/AP

June 10, 2013

Maryland authorities say they've charged a New Jersey police officer after an alleged road rage incident in which one person was fatally shot.

Maryland State Police responded Saturday evening to a shooting on the shoulder of the ramp from northbound Route 3 to Interstate 97 near Millersville.

Troopers say they were told that a road rage incident had happened between the two vehicles before they pulled over and the shooting occurred.

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Troopers believe the driver of a minivan, 40-year-old Joseph Walker of New Jersey, shot the driver of a Honda, 36-year-old Joseph Harvey Jr. of Millersville, after Harvey approached the minivan. Harvey later died.

Troopers charged Walker on Sunday with second degree murder and manslaughter. He is a sworn officer with the Hudson County Prosecutor's Office in New Jersey.