Mabel Greenwood died in Kidwelly in 1919, but she was not to rest in peace - rumours were rife in the small West
Wales town that her death had not been due to natural causes. Nine months after her burial, the body was exhumed.... and found to contain arsenic. Her philandering husband, Harold, was accused but subsequently cleared of her murder - so just how did Mabel die? Roger Worsley investigates. Producer DAVE SIMMONDS BBC Wales