Thursday night, March 15, residents in the 5400 block of Worth returning home around 10:40 pm, noticed that the back door was open. The man of the house took out his pistol, chambered it loudly, and announced that whoever was there needed to leave immediately. Someone slammed the back door on the way out. Several minutes later the residents and neighbors on Tremont heard a car speeding away on Tremont. The police secured the house and back yard, searched but found no one. Nothing was taken from the house. It is believed that entry was gained by reaching through the pet door and turning a key that was left in the back door. Did anybody see or hear any suspicious that night?  Does anybody recall an unfamiliar car parked on Tremont about this time?  If so, please call 911 or Keith Allen, our Interactive Community Policeman. His phone number is 214-670-0659. Â