Oklahoma authorities work to find long-hidden 'trophies' that BTK serial killer gave locations of, sheriff says

A woman depicted in a drawing by the BTK serial killer has possibly been identified, sheriff says

Law enforcement seeks help to identify barns in BTK serial killer cold case investigations

BTK's journal links the serial killer to a 16-year-old who went missing decades ago, authorities say

Kansas authorities searching former property of BTK serial killer Dennis Rader as they look for connections to unsolved cases