The policemen said he had seen the puppets himself many times over the years and said the ghost of a Victorian puppeteer named Mr Knapple, who had lived at the house where the yard wall was many years ago, was often seen working the puppets.
One member of the children's gang, a boy named Georgie Jackson, suffered nightmares about the ghostly puppeteer and, even today, he shudders at mention of Mr Knapple
"This is a test of how art and commerce intersect," says Jeff
Knapple, a former Denver Broncos quarterback who heads Envision.