I'm not sure, but, Mark being Mark, he may have intended these lines to sound odd, to create an effect.
The song starts with a neutral 3rd person storyteller, almost like a newspaper report, and in the last bit it suddenly gets very personal, first by listing the real names of the real victims (not those of the criminals!) and the widows and orphans, and then brutally transporting you back from that "place in the song" to the present.
It's almost as if he had only realised at the end of the song that it was a real crime committed on real people, by looking at the guitar in his hands. And there the redwood becomes a strong image, which reminds you of the bloodshed.
I don't think he's written a more empathetic song since "This is goodbye" and "Piper". It's the sort of song I can't listen to very often, because they're almost too emotional for me.