Friends and families of the roughly 60 people hit by an SUV that sped through a Christmas parade in a suburban Milwaukee downtown say some suffered life-threatening injuries.

A Kansas City man who was jailed for more than 40 years for three murders has been released from prison after a judge ruled he was wrongfully convicted in 1979.

A suspect was taken into custody Sunday night, said the Waukesha, Wis., police chief.

An Ohio-based church organization could not give the names of those released nor explain why they had been freed.

Many had already left for home when the demonstration descended into violence as several hundred people started pelting police, smashing cars and setting garbage bins ablaze.