CAIRO, Ill. (AP) — An Alexander County jury has convicted an 18-year-old Cairo man of first-degree murder. Marquad Harris was found guilty Friday in the June shooting death of 34-year-old Christopher Nelson of Cairo. Nelson was the father of Harris’ younger brother. Alexander County State’s Attorney Zach Gowin tells the Southeast Missourian newspaper “it’s a sad situation” for the family. Harris returns to court for sentencing on April 12.