Random Riddle: The Murderer

The civil cage me with impediments
But I’ve turned captains to skeletons
Let me loose as you read this,
And I’ll kill artificial intelligence

Three years ago they found me
In the back-bones of the helix
Eighteen ago I killed a visitor
In the Night vision of a Phoenix

I slaughtered the pestilence
Of Earth’s residents
Only sparing a few
On a vessel of eminence

And though some turn to drums,
As the sky flashes, to save me,
I’ve killed fluttering red, white, and blue,
Yet every one of you craves me.
 

Random Riddle: The Murderer