A Tamale Circuit Court presided over by Senyo Amedahe, yesterday convicted four persons, including the youth chief of Tishiegu, to a total of nine years in prison with hard labour for their roles in the skirmishes at Tishigu, a suburb of Tamale in the Northern Region, in 2012, resulting in the death of one Yakubu Amadu. Several others were reported to have suffered multiple machete and gunshot wounds.