In Denver alleyway, a piece of graffiti evolves

(Photo: Courtesy of Nick Arvin)
<p>In the center panel of Gamma&#039;s street art piece “Insomnia,” the drone is replaced with a figure in an orange prison jumpsuit. A sort of Big Ben tower is added and odd, dark little heads hover in the distance behind Rupert Murdoch.<o:p></o:p></p>