Career
On April 19 Muranen shot mailman Matti Olli, 45, with the assault rifle. He also shot randomly at nearby houses, escaping into the forest with his dog. During the chase, police shot the dog with a submachine gun, while Muranen returned fire with the assault rifle.
The police chased him for a day before slightly wounding him.
After he was arrested he expressed regret that his military service would be terminated. Muranen was found to be competent to stand trial.
Kotka district court sentenced him to life in prison on three counts of murder, eight counts of attempted murder and three counts of attempted manslaughter. He was sent to a prison in Mikkeli.
The same year, there was a similar case in Sweden, where army officer Mattias Flink killed seven people with an Ak 5.
In 2004, after serving 10 years, Muranen was transferred to an open jail in Laukaa. In 2006, while serving his sentence in Laukaa, he gave his first interview to the Finnish crime magazine Alibi. Muranen applied for parole several times: 2006, 2007, 2010 and 2011.
In September 2013 Helsinki court of appeal finally granted him a parole.
Muranen was released from prison in September 2014.