The August 19 incident started in Whanganui and ended with arrests in Waiouru. Mr Kohu was 24 at the time.
After it he was charged with two counts of attempted murder - or two alternative charges of using a firearm against a law enforcement officer - failing to stop, two counts of reckless driving, endangering transport, unlawfully taking a motor vehicle, unlawfully possessing a pistol, unlawfully possessing explosives, and possessing utensils for meth.
He was said to have driven into a police car and shot at two officers.
Five others received associated charges, but most of those have since been dropped.
Mr Kohu had two previous firearms incidents in his past. He shot at a family in Whanganui's Hylton St in 2012, and was involved in an aggravated robbery of the Pylon Dairy in 2008.
Schooled in the Waimarino, teachers from Ruapehu College were "gutted" at news of his August offending and arrest. They believed he was "a good kid" who had lots of promise for the future.
Timeline of history
• September 2008 - Robbed a Whanganui dairy with a sawn-off shotgun while on bail for other offences
• March 2009 - Sentenced to 3 years 9 months prison for the aggravated robbery
• June 2011 - Sought by police for breaching prison release conditions "over violence matters"
• March 2012 - While on parole fired a shotgun at a family in Whanganui and spent six weeks on the run from police
• May 2012 - Arrested in Wellington
• March 2013 - Sentenced to 2.5 years prison for the shooting
• February - Recalled to prison for breaching parole conditions by smashing the windows of a car he wanted to buy with a vodka bottle
• March - Granted parole after it was found "no further breaches are likely"
• June - Released from prison
• July - Corrections applied to the Parole Board to have Kohu recalled to prison for breaching his parole conditions