sun going down, air cooling down to a fine evening warm. here at the town's historic rodeo grounds, refugees from the summer heat in phoenix two hours and 25 degrees away settled into the stands to enjoy the annual exploits of the cowboys. at the very same time, a few miles away on the edge of town, a woman named carol kennedy jogged along a well-worn path at the base of granite mountain. sometime after 7:00 she turned in at herbig backyard here on a street called bridle path. trotted past the stone labyrinth she'd laid out here years earlier to mark the turn of the millennium. and arrived at the backdoor of the house she intended to inhabit for the rest of her natural days. but of course, carol kennedy had no idea that this was going to be her last day. and, no, it would not be natural at all. >> it's the biggest loss of my