(CNN) -- FBI investigators believe two letters found last year in Wichita, Kansas, are from the so-called BTK killer, police said Thursday. Authorities blame the self-named BTK (bind, torture ...

Wichita? Police have received at least 32 tips since The Wichita Eagle received a new letter apparently sent by the BTK strangler, an unidentified serial killer who terrorized the city in the ...

Police later conclude she was a BTK victim. ¢ Oct. 22, 1974: The Wichita Eagle-Beacon gets a letter from someone taking responsibility for the Otero family killing and including crime scene details.

By 1978, the BTK killer was drawing national headlines thanks to his attention-seeking efforts to taunt local police. He sent letters to television stations, claiming responsibility for his five ...