SPARTANBURG COUNTY, SOUTH CAROLINA — A woman missing for months has been found alive, chained up like a dog on an isolated property owned by a convicted sex offender. <br /> <br />Kala Brown, 30, was found by deputies on Thursday when they searched a property owned by registered sex offender Todd Kohlhepp, NBC affiliate WYFF reported. <br /> <br />Brown was discovered when deputies heard banging coming from inside a metal container. She had been held in the container since going missing in August, unable to escape because of a metal chain around her neck. <br /> <br />Brown told investigators there could be four bodies on the property. Her boyfriend Chris Carver, who disappeared around the same time, remains missing. <br /> <br />Investigators also found Carver’s car on Kohlhepp’s property, WSPA reported. <br /> <br />Kohlhepp is likely to be charged with kidnapping and investigators continued to search the property for bodies. <br /> <br />Investigators said they were trying to establish if they had a serial killer on their hands. <br /> <br />The case came to national attention when posts appeared on Carver’s Facebook page that his family suspect were written by someone else. They were later deleted.