It sounds like this guy had committed horrendous crimes and was planning another. I'm glad he was foiled and jailed. FBI tip-off helps authorities foil mass stabbing attack at court, Hastings man jailed:
What worries me though is this:
On 28 September, the FBI alerted DIA that he planned to commit a mass stabbing attack on his court date.
How is the US agency the FBI involved in detecting crime within NZ? That's scary.