Body of Yuka Yukishi was found on a beach in Iwanuma City on April 13
TokyoReporter
After the incident on Monday, Yoshishi Sasaki turned himself over to police
Nagano said, 'I sincerely regret my thoughtless actions'
Police suspect the ring was behind about 100 other thefts of copper wire worth around 25 million yen
Suspect's involvement came to light after evidence was found that he had purchased cannabis seeds online
Suspect has 'no idea' about the matter
Victim said, 'She cut my ring finger so that I couldn't marry another woman'
Aichi police recommend drivers add alarm devices and steering wheel locks
Brother of last owner made discovery upon collecting his mail
Body had multiple stab wounds, police said