WOBURN, Mass. (AP) — A Lowell man has been acquitted of the most serious charge in connection with a traffic crash that killed an off-duty city police officer riding his motorcycle, but convicted of a lesser charge.

A jury Tuesday convicted 28-year-old Theary Chan of misdemeanor motor vehicle homicide by negligent operation but cleared him of felony motor vehicle homicide in connection with the September 2010 death of Officer Patrick "P.J." Johnson.

Prosecutors say Chan ran a stop sign and into the 31-year-old Johnson's path.

The Sun (http://bit.ly/1esbdxE ) reports that Chan was sentenced to serve six months of a 2 1/2-year term with the remainder suspended for three years.

Chan's lawyer told the jury that Johnson was drunk and driving as fast as 80 miles per hour just before the crash.

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Information from: The (Lowell, Mass.) Sun, http://www.lowellsun.com