More on the story. . . "A giant helium balloon sent to Pennsylvania to aid in the manhunt for accused cop killer Eric Frein was returned after just one day, police said. The unmanned balloon came from Ohio and was supposed to be quieter than a helicopter and provide similar technology to aviation equipment being used in the search, but at a lower cost, police said. But it was returned just a day later, police said today." http://abcnews.go.com/US/eric-frein-manhunt-hopes-deflated-balloons-failure/story?id=26552052