Ex-girlfriend and postal worker accused of killing Longmont letter carrier. She drove from another post office on the clock after ditching her GPS scanner "The woman accused of gunning down an ex-boyfriend who is also the father of her son had recently threatened the victim and been fired from her job at the same post office where he worked due to "an incident" between the two of them, an affidavit for arrest from Longmont Police Services (LPS) says."