The contrail in question was not a fixed wing aircraft. Contrails begin to evaporate fairly soon after generation.
Additionally, the exhaust trail in question has a shape, depth, density, and opacity that is totally alien to contrails.
Ladies/Gents, that is the exhaust trail of a solid propellant rocket; not a liquid fuelled rocket or aircraft contrail - SOLID PROPELLANT ROCKET.
Now, who launched it is another question."
Well said... From someone who would know
Geeez how many more people with PhDs in aeronautical engineering do we need to tell us "It was a missile!" ???
Folks, it was a missile, undoubtedly and unmistakably,
and it is very easy to see and to identify
and the government is trying to get you to forget about it, or to ignore it, or to dismiss it.
No, often not true. In fact, sometimes they grow larger and last 10 for more hours. Look up and do some research on "contrail persistence." (And please don't tell me about "chemtrails.")