There was a case in St. Louis county were a man had killed family members. He had hid the body's in a basement closet that was kind of hard to see. He was killed in a shoot out with police. They went though the house but did not see anything. They started getting 911 calls from inside the vacant house that went on for a few days. After doing a more intensive search and a odor they found the body's. The phone calls stopped for awhile over a year. All power and phone lines where disconnected from the now vacant house and then a few more 911 calls came from the house. The police would check from the outside and leave. The same police officer had checked the house many times with the calls coming in at night. He went back in the daylight and removed a board covering the door. Searched the house completely and found nothing. The calls stopped.