The nation was still reeling Monday from the deadly mayhem waged the day before by a 25-year-old man who ran down several people with a truck and then proceeded to fatally stab others in Tokyo's densely crowded Akihabara electronics district, killing seven.

It was learned that several posts on a mobile phone Web site foretold the deadly stabbing spree.

The descriptions and the time-stamps of the messages, which were apparently posted starting early Sunday and continued until minutes before the stabbing spree, closely followed the developments.