"I have yet to see it."
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Have you honestly looked? Try http://contrailscience.com.
There (in addition to a photo showing why an overhead flight appears to be climbing straight up) you will find time-lapse stills and 3-D Google Earth plots of the flight path(s) of the specific UPS (and AWE) flights that crossed that airspace that day in that time window. The flight path(s) exactly match plane positions in the time lapse photos of the "missile" phenomenon.
It is up to you and your integrity to view all the evidence with an open mind.
BTW, "Looks like a missile to me" is not evidence...
And the cameraman need not be a liar -- just misinterpreting a normal phenomenon -- like a lot of the "missile hopeful" here...
Being a video of the event in question makes it a thousand times better evidence than that silly display at contrailscience.com.
The angle and light direction of the still shots and its location perspective to the video don't jive as being of the same event. In particular, the glow of afterburner is all wrong in this moving video for light supposedly reflected on the bottom of an in-bound airliner. The video shows something moving north-northwest very quickly.
Nor do I recall hearing the cameraman say anything about how the object detached from the contrail and continued on its way.
Look, the contrailscience info is impressive and geeky. But it looks suspicious to me. You believe what you want to believe. I personally understand that what I want to believe doesn't always jive with what I feel compelled to conclude in the context of personal observation, experience, and perusal of speculation made by a wide group of people.