This is sad.
An Independence Day parade in Iowa descended into chaos when when two horses went out of control and took their wagon with them, running into crowds of celebrants and leaving more than 20 people injured.
A woman injured in the incident died Sunday evening, police said.
It happened at the Bellevue Heritage Day Celebration Parade in Bellevue, Iowa, on the state's eastern border with Illinois.
Fire Chief Chris Rowling told ...