I forgot and missed this program yesterday but here is a link to watch the program online.

One man's mission to kill a dangerous outlaw: a wolf named Lobo.  It was up to Seton, a naturalist as well as a professional animal trapper, to exterminate this “super-wolf.” The ensuing battle of wits
between wolf and man would spark a real-life wilderness drama, the
outcome of which would leave a lasting effect on a new and growing
movement in America: wilderness preservation.

http://www.pbs.org/wnet/nature/episodes/the-wolf-that-changed-ameri...