Fight over cigarettes leads to stabbing death in Assumption Parish _lowres

William Thompson, Labadieville, arrested Feb. 19, 2015 for manslaughter. Assumption Parish Sheriff's Office.

NAPOLEONVILLE — A Labadieville man has been sentenced to 20 years in state prison after his plea this summer to manslaughter in the fatal stabbing of his step-grandson more than two years ago, prosecutors in Assumption Parish said Friday. 

William Thompson, 63, admitted June 5 to stabbing Daquan Rainey, 20, of Laplace during an argument over a pack of cigarettes at Thompson's Assumption Parish home that turned physical, prosecutors said in a news release.

Assumption Parish sheriff's deputies had found Rainey lying in Thompson's driveway at 187 Violet St., Labadieville, on Feb. 17, 2015, with a single stab wound in the upper torso, prosecutors with the 23rd Judicial District said. The parish Coroner's Office pronounced Rainey dead at the scene.

Sheriff's investigators found the knife used in the stabbing in the bed of a pickup parked in the yard of Thompson’s home, prosecutors added.

Even before his plea in June, Thompson was facing a manslaughter charge. Assistant District Attorney Tommy Daigle and other prosecutors didn't reduce Thompson's charge but let his sentence hinge on a pre-sentence investigation, Tyler Cavalier, spokesman for the 23rd Judicial District Attorney's Office, said Friday. 

Judge Jessie LeBlanc of the 23rd Judicial District Court handed down the 20-year sentence Wednesday at the Parish Courthouse in Napoleonville. A conviction for manslaughter has a maximum sentence of 40 years.

Cavalier said Thompson never explained what led to the argument over the cigarettes.

The 23rd Judicial District encompasses Assumption, Ascension and St. James parishes.

Follow David J. Mitchell on Twitter, @NewsieDave.