Police have said autopsies showed poisoning as the cause of death of two 88-year-old male patients on Sept. 18 and 20. Investigators found 10 unused intravenous drip bags with small holes in their rubber seals on the fourth floor of the hospital, where the two elderly patients had died, The Japan Times reports. They are now also investigating the deaths of 46 elderly patients since July, who were being treated on the same floor as the two deceased men.
Authorities arrest a Japanese man for killing as many as 48 elderly patients at the Oguchi Hospital in Yokohama.