A convicted drug dealer who police say shot and killed a 12-year-old South Carolina trick-or-treater is set to plead guilty to a federal weapons charge. Quentin Patrick is expected to plead guilty Tuesday afternoon in federal court in Columbia after a morning session was postponed.

Gwinnett County police say they seized 457 pounds of marijuana, arrested four men and confiscated five guns including an M16 and AK-47 assault rifles.

An ex-convict charged with killing a South Carolina child who knocked on his door on Halloween night is now facing a federal weapons charge.