Mayu Tomita has been left in a coma after the man "ambushed" her before an event in Tokyo, it has been reported
Japanese pop star Mayu Tomita is in a coma after a fan stabbed her dozens of times because she reportedly refused his gift.
Police found a three-inch folding knife at the scene in western Tokyo on Saturday.
A bloodstained mask and a trail of blood were found on the stairs near where the star was due to give a concert later that evening.
Tomohiro Iwazaki, 27, confessed to stabbing Tomita in the neck and chest.
He claimed he “ambushed” the star because she returned a gift he sent her.
According to The Japan Times, Iwazaki told police: “I lost my temper and stabbed her many times because she didn’t clearly answer.”
The man is thought to have sent the 20-year-old online a barrage of messages via Twitter and her blog.