We've had bobcats, deer, turkeys, and hogs come out on the road we use as a range when we're firing there. They are curious, at best. Typically, when we're not pursuing them, they are less skiddish and often can be spotted.
In your case, you were pursuing him, but he was overwhelmed by the shooter to your back giving you the shot of a lifetime. Congratulations for being in the right place and time and sharing the experience in two ways with your Land Owner. Nice!