Messages that Japanese police say were posted by Tomohiro Kato from his mobile phone on to an internet message board on the morning of the Akihabara massacre just minutes before he went on his killing spree.

05.21 Sleepy. Will drive into (the crowd), and after the car gets unusable, I’ll use the knife. Goodbye everyone

05:34 I can’t get over this headache

05:35 Rain is forecast. Bad

06:02 I’m used to playing the role of good man. Everybody is so easily deceived

06:03 Am I incapable of having friends?

06:10 It seems the road I planned to take is blocked. After all, everything is against me

06:31 The time has come. Let’s go

06:39 It seems I’ll be battling against my headache

06:49 ...against rain

06:50 ...against time

07:30 What a dreadful rain...even though I prepared everything perfectly

07:47 Even though the scale [of the massacre] is small, I’ll do what I decided to in the rain

09:48 Into Kanagawa and having a rest. Things are going well at the moment

10:53 Awful jam. Will I be in time?

11:07 Shibuya. It’s awful

11:45 Reached Akihabara. It’s the day of “pedestrians’ paradise”, isn’t it? Just minutes left now.

Times Recommends

• Tehran cannot live up to its rhetoric
• The new unicycle that will ‘change the world’
• We cannot wish away Iran’s bomb