St Louis police investigate Michael Brown's stepfather

US police are investigating the stepfather of black shooting victim Michael Brown for inciting illegal activity during protests in Ferguson.

Video shots showed Mr. Head yelling "Burn this place down!" before last week's riots over perceived racial injustice in the Missouri town.

He spoke as a grand jury announced no charges for a white police officer who shot and killed an unarmed teenager.

The incident sparked a nationwide dialogue about race relations.

St Louis County Police spokesman Brian Schellman said the authorities want to talk to Mr Head about his comments amid a larger investigation into arson and looting during the Ferguson protests.

Source: BBC