[Inkscape-user] letter with red stroke

I am new at inkscape, so this maybe a simple question.

I have to have a single letter (K) that I want to have one of the stroke to be in red, and the rest in black. How do I do that? I can manipulate individual nodes, but not parts of the strokes that make up the letter. In my case, I want the vertical stroke of the letter K to be red. thank you ciro