Hawaii employee who sent false missile alert: 'I was 100 percent sure it was real'

False alert sent in Hawaii highlights preparations for missile launch

False alarm: Erroneous alert issued about nuclear missile threat in Hawaii

False ballistic missile alarm forces Hawaii into panic mode

Timeline: Hawaii false alarm missile scare

6 years ago, false missile alert rattled Hawaii’s nerves — and showed more prep needed

Accidental ballistic missile alert warning issued to cell phones in Hawaii

Hawaii 'ballistic missile threat' alert to phones was false alarm, officials say

Hawaii missile alert mistake