BTK suspect 'confesses to six murders'

The man suspected of 10 murders attributed to the "BTK" serial killer confessed to at least six of the killings, a source with direct knowledge of the investigation said today.

Investigators in Kansas now believe Dennis Rader may have been responsible for as many as 13 killings – including at least one that occurred after the death penalty was enacted in the state, the source told The Associated Press news agency.