Suspect says he decided to stage Akihabara attack a few days before

TOKYO —

The suspect in Sunday’s stabbing spree that left seven people dead and 10 others injured has told investigators that he decided several days before to stage the attack at the Akihabara electronics district in central Tokyo.

‘‘I got tired of my life. I’ve visited Akihabara several times. I know that there are many people there,’’ suspect Tomohiro Kato, 25, was quoted as saying.

Kato has also told the investigators that he went to Akihabara to kill people.

Investigations showed that Kato made a reservation Saturday to rent a truck which he used in the attack the following day.