Chicago mass shooting: man in custody after six shot dead at Fourth of July parade

Witnesses speak of their terror after at least six killed and 30 injured at public event in Highland Park

A person of interest in the mass killing that targeted a Fourth of July parade in the Chicago suburb of Highland Park has been taken into custody, the Highland Park police chief said on Monday evening.

More than 100 law enforcement officers had scoured the suburb and surrounding areas after at least six people were killed when a lone gunman rained down bullets on the town's independence celebrations on Monday morning.