Serial killer Mohan Kumar, arrested on the charge of murdering 19 women, has confessed to killing one more woman by giving her a cyanide capsule, police said today.

He had told the police during interrogation that his 20th victim was Poornima, a 35 year-old music teacher from Bekur under Manjeshwar police station limits.

The psychopath, who was nabbed on October 21 for killing 19 women after luring them into his death-bait with the promise of marriage, was in police custody since then and would be produced before the Judicial Magistrate First Class (JMFC) at Bantwal today, police said.