Norge--great info, and thanks, I will use that.
In the meantime, it looks like our neighborhood creep may have been caught today.
http://www.phinneywood.com/2012/06/23/police-arrest-man-who-posed-as-cop-in-sexual-assault-at-93rd-aurora-last-week/#comments
What I didn't say in my original post is that a week before my house prowl, my neighbor saw a man on and off my front porch a few times. It was about midnight, and I was already in bed at the time of the incident. My neighbor got a good look at the guy, and when Phinneywood posted the drawing of the suspected rapist, she called it in. My neighbor is very nearby, and saw the man on my porch very clearly.
When my house prowl happened, the perp had unscrewed the motion sensor lights on my porch before moving to the back of the house. It could be said that he might have had prior knowledge of the ins and outs of my property. If you draw a rough line between the two incident, which happened days apart, guy #2 is also guy #1.
That said, I'm sleeping safe and sound. There's a can of bear spray close by if he's lucky, and a .357 I borrowed right behind it. I am a pretty good shot, so all should end well. I'll leave it to the cops to ID whatever's left of the guy.