WORCESTER, Mass., May 19 (UPI) –An immigrant from Ecuador was sentenced to 12 to 14 years in a Massachusetts prison Monday for a drunk-driving crash that killed a man on a motorcycle.

Nicolas Dutan Guaman was found guilty of manslaughter after a four-day bench trial. Judge David Ricciardone listened to statements from the family of Matthew DeNice before handing down his sentence.

The judge acquitted Guaman of second-degree murder.

Investigators said that Guaman, in a pickup truck, drove through a stop sign in Milford in central Massachusetts in August 2011 and struck DeNice’s motorcycle. DeNice, trapped in the truck’s wheelwell, was dragged for about a quarter of a mile.

Guaman, 37 was also charged with reckless endangerment of a child because his young son was a passenger in his truck.

During closing arguments last week, Guaman’s lawyer argued prosecutors did not prove his client was drunk at the time of the collision.

Guaman was living in the United States illegally at the time of the crash and did not have a driver’s license. His lawyer said he could not understand bystanders calling to him to stop because of his poor English.

Maureen Maloney told the judge the death of her 23-year-old son left “a deep searing pain” in her heart.