Tap the StaLok fitting up the wire till you can pry the outer wires apart and twist off the cone. You'll then be able to slip the StaLok fitting off the wire and the extrusions off the wire. Since you shouldn't try and reassemble the StaLok fitting in it's current
location, would be easiest to cut the wire at the fitting. That will probably require new wire as the wire will be shorter by the amount you cut off. Order new formers and cones along with the new wire if the wire will be too short.