I know how scary that is. We had a very similar situation about 1 1/2 years ago. I woke up to a helicopter circling with a spot light on our house/yard. It just wouldn't go away so Justin called the police to see what was going on. They told us that they were after someone who was believed to be in our yard (we have 5 acres surrounded by woods on all sides). She then told us to turn on all our lights and call if we see anything suspicious. All 3 of us sat on the couch, Nathan watched cartoons. About 3 hours later (about 5:00 am) the helicopter left and the police cars started pulling out. Justin called police station again and they said the guy was caught on the side of our yard, by the woods.