MADISON, Ill. (AP) — Twin brothers have been charged in the fatal shooting this week of a 15-year-old southern Illinois boy and the wounding of two others.

Torion and Corion Mosley of Madison were charged Wednesday with first-degree murder in the death of Omarian D. Coleman, also of Madison. The 21-year-old twins are also charged with aggravated assault with a firearm, and unlawful possession of a weapon by a felon.

Granite City Police Lt. Nick Novacich headed the Major Case Squad of Greater St. Louis investigation. He says the shootings stemmed from a feud between the brothers and the victims.

Authorities say Torion Mosley got into a lengthy standoff with police at his home on the night of the shooting before being arrested. His brother was taken into custody later.

Both men are being held in lieu of $1 million each. It wasn’t immediately known if either have legal representation.