A Camden County jury found 47-year-old Detective Mark Campagna, of Mays Landing, guilty on Thursday of endangering another person during the incident in 2023.
Video now released from a police mobile recorder shows him following a motorcyclist while off-duty in an unmarked vehicle, reaching speeds past 100 miles per hour without lights or sirens.
The chase ended in Springfield Township, where the motorcyclist -- identified as 24-year-old Omar Kebbabi, from Queens, New York -- collided with another vehicle and was killed.
Campagna faces up to 18 months in prison for the conviction.
Sentencing is set for July 30.