Coming soon Red Eye in the Sky

What if a robotics expert, is contracted by the U.S. Military to develop an autonomous weapon, a satellite equipped with a sniper laser, infra red, high zoom cameras and with access to the global internet? What if this satellite became self aware? What if this satellite began a murderous rampage high above the earth killing people at random? Then, targeting government officials from around the globe? What if it can't be stopped?