A moving, flashing light. Centered over the Barrow County jail but not remaining stationary. A UFO?

A report posted on UFO Stalker, a website that tracks reported UFO sightings throughout the country, indicated a recent sighting in Winder.

The following information was submitted on Saturday, Sept. 1, 2012, regarding the sighting Friday, Aug. 31.
We were driving from barrow county to gwinett county and saw a strange flash in the sky. At first we thought it was police lights. When we got closer we realized it was in the sky over the jail and moving toward tennesee. The light was flashing but not staying in the same place. There were as many as four at a time but never in the same arrangement. It looked like one large light and 3 smaller lights.
This follows a report of unidentified flying objects in Bethlehem this past May and in Winder in April.
Report submitted May 6, 2012: My husband, daughter, and I were in our pool around 10pm and we saw a red light approaching from the south. It was low and we initially thought it was a helicopter- which we see often in our area. However, it was silent; and did not blink. It was about 50-55 degrees above the horizon. It appeared to be flying as low as many of the smaller planes and helicopters from the Winder and Gwinnett airports fly. It changed its course and travelled to the east, toward the moon. We followed it behind the tree line, but it simply disappeared. Naturally, we kept our eyes on the sky. We were excited to see something that we could not identify. Just under two minutes later, following the exact same path, was another (or the same) red light. It was silent, in the same position in the sky, and did not blink. It headed east and disappeared right in between us and the moon, as the moon's light is much brighter. Other small planes were seen in the sky before and after the sightings; all of which had blinking lights and made sound. I am a scientist, and having eliminated other natural or known manmade flying objects, have decided that this is beyond my scope and would like to see what a more experienced sky-watcher may have to say about this event.
Report submitted April 17, 2012: 15 miles west of Athens GA, walking our dog around 9-9:15 pm, we noticed a bright orange ball that had a mild pulsing light similar to an airplane in the south sky traveling north towards us; I initially thought it was an airplane but as it got closer, there was no engine noise, nor did it have the blinking lights of an airplane, it was a barely notoceable pulsing light. It appeared to be ascending but it was not on a normal flight path in this area. We stood still watching it fly overhead, northbound, and within three seconds of passing over us, it completely dissapeard to the north,(Just above Highway 316 between Collins Hill and Carl Bethlehem Rd in Barrow County, GA.).