A third defendant has been found guilty in a 2009 triple killing in Laclede County, in south central Missouri.

The Lebanon Daily Record says 21-year-old Stephen Pyykola was convicted Friday of three counts of first-degree murder and other charges. He’ll be sentenced November 15th.

Pyykola was one of four Springfield, Missouri men charged with killing Jeffrey and Glenda Smith at a home in Phillipsburg and Zachary Porter of Elkland in October 2009.

The Smiths were the parents and Porter the boyfriend of Miranda Smith, an ex-girlfriend of defendant Joshua Reyes. Reyes and Smith had two children together.

Reyes and defendant Jacky Wong both pleaded guilty earlier. A fourth defendant, Benjamin Stidham, is awaiting trial.

- AP and Bob Hamilton, KMOX News