Flowers and drinks are seen on Nov. 20, 2017 on a street near the apartment complex in Zama, near Tokyo, where nine dismembered bodies were found in late October at the home of suspect Takahiro Shiraishi. (Kyodo) ==Kyodo

TOKYO - A Japanese court on Tuesday sentenced a man dubbed Japan's "Twitter killer" to death for the 2017 serial murders of nine people who posted suicidal thoughts on social media.